25.14 mL of 1.420 M NaOH solution is needed to titrate 25.00 mL of a 1.500 M H₃PO₄ solution.
What is titration?Titration is a laboratory technique used to determine the concentration of a solution (the analyte) by reacting it with a solution of known concentration (the titrant). The goal of titration is to add the titrant to the analyte until the reaction is complete, at which point the concentration of the analyte can be calculated from the volume and concentration of the titrant used.
To determine the volume of NaOH solution required to titrate the given solutions, we can use the following equation:
M(acid) x V(acid) = M(base) x V(base)
where V represents volume and M represents molarity.
(a) To titrate 25.00 mL of a 2.430 M HCl solution with NaOH, we need to determine the volume of 1.420 M NaOH required to react completely with the HCl.
From the equation above, we can write:
2.430 M x 25.00 mL = 1.420 M x V(base)
V(base) = (2.430 M x 25.00 mL) / 1.420 M = 42.96 mL
Therefore, 42.96 mL of 1.420 M NaOH solution is needed to titrate 25.00 mL of a 2.430 M HCl solution.
(b) To titrate 25.00 mL of a 4.500 M H₂SO₄ solution with NaOH, we can use the same equation:
4.500 M x 25.00 mL = 1.420 M x V(base)
V(base) = (4.500 M x 25.00 mL) / 1.420 M = 79.58 mL
Therefore, 79.58 mL of 1.420 M NaOH solution is required to titrate 25.00 mL of a 4.500 M H₂SO₄ solution.
(c) To titrate 25.00 mL of a 1.500 M H₃PO₄ solution with NaOH, we use the same equation:
1.500 M x 25.00 mL = 1.420 M x V(base)
V(base) = (1.500 M x 25.00 mL) / 1.420 M = 25.14 mL
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naturally occuring element x exists in three isotopic forms: x-28 (27.343 amu, 67.14% abundance), x-29 (28.889 amu, 10.50% abundance), and x-32 (31.993 amu, 22.36% abundance). calculate the average atomic weight of x. please enter your answer to 4 significant figures.
The naturally occurring the element x exists in three isotopic forms. The average atomic weight of x 28.544 amu.
Given that :
x- 28, Abundance % = 67.14 % = 0.6714
The atomic mass = 27.343 amu
x-29, Abundance % = 10.50 % = 0.1050
The atomic mass = 28.889 amu
x- 32, Abundance % = 22.36 % = 0.2236
The atomic mass = 31.993 amu
The average atomic weight = ( 27.343 × 0.6714 ) + ( 28.889 × 0.1050) +
( 31.993 × 0.2236)
= 18.358 + 3.0333 + 7.153
= 28.544 amu
Thus, the average atomic weight of naturally occurring element x exists in three isotopic forms 28.544 amu.
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what is the rate of diffusion for ammonia
In comparison to hydrogen chloride, ammonia diffuses 1.46 times more quickly.
Is the diffusion of ammonia quick?Since hydrogen chloride has a higher molecular weight than ammonia, the hydrogen chloride will diffuse more slowly and cover a longer distance inside the tube.In comparison to hydrogen chloride, ammonia diffuses 1.46 times more quickly.NH3 diffuses at a faster rate because it has a smaller molecular mass than the other gases mentioned. Graham's law of gas diffusion states that this is the case.To get the diffusion rate of a certain gas, divide the diffusion rate of the original gas by the square root of the molar mass of gas 2, then divide that by the molar mass of gas 1.To learn more about ammonia diffuses refer to:
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suppose your original tea happened to be a 10% solution of sucrose, and your pot contained 500 ml of tea. you diluted it with 200 ml of water. you now have 700 ml of tea. but what is the new concentration?
The new concentration of sucrose in the tea is 7.14%.
When a solution is diluted, the number of moles of solute (in this case, sucrose) remains constant, while the number of liters of solvent (in this case, water) increases. Therefore, the concentration of the solute decreases.
To calculate the new concentration, you would divide the number of moles of sucrose by the number of liters of the final solution (700 ml). In this case, the original solution was a 10% solution of sucrose, so it contained:
10/100 × 500 = 50 grams of sucrose.
After dilution with 200 ml of water, the new solution contains:
50/700 × 100% = 7.14%.
Therefore the new concentration is 7.14%
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List at least 3 physical properties if water.
Answer:
Appearance: Water is a colourless, odourless and tasteless liquid in its natural state. The crystal structure of water is hexagonal.
Density: The density of water is about 1 gm/cc and it varies with temperature in an undefined pattern. In solid state, the density remains close to 0.9gm/cc.
Viscosity: Viscosity is explained by the resistance to deformation at a given rate. In other words, the thickness of the liquid - eg, syrup or water. Viscosity of water is 0.89 cP.
Explanation:
true or false: in the context of depressant drugs, chloral hydrate is rapidly metabolized to formaldehyde, which is the active hypnotic agent.true false question.truefalse
Chloral hydrate is used as a hypnotic agent. It is metabolized in liver to form trichloroethanol and trichloroacetic acid.. So it is false that chloral hydrate is metabolized as formaldehyde.
Chloral hydrate is readily absorbed after oral administration and metabolized by alcohol dehydrogenase enzyme in liver. It is metabolized as trichloroethanol and trichloroacetic acid. Trichloroethanol is the metabolite which results in all the pharmacological activity. Which is further metabolized as Trichloroethanol glucoronide and dichloroacetic acid.
Formaldehyde is toxic substance and it is metabolized in liver which has no association with chloral hydrate.
So it is false that chloral hydrate is metabolized to formaldehyde.
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Use the figure to answer the questions name a pair of complementary angles 
Complementary angles are two angles whose sum is 90 degrees.
How do you write a pair of complementary angles?If the total of two angles is 90 degrees, they are said to be complimentary. Angle supplement is defined as (180 - x)°. (90 - x)° is the angle's complement.Each angle is the complement of the one before it. Similar to supplementary angles, these are the angles that add up to 180 degrees.A complimentary pair of colours is one such combination of hues. Fig. 1.7 also has other examples of complimentary pairs, such as red with cyan, violet with yellowish green, green with magenta, purple, or red, depending on the specific shade of green, and so forth.There are five basic relationships between angle pairs in geometry: complementary, supplementary, adjacent, linear, and vertical.To learn more about angles refer to:
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How many grams of water can be formed from 192 grams of oxygen gas?
The mass of the water that is formed by the oxygen is 216 g.
What is the mass of water formed?We know that we would have to look at the reaction equation and this would give us an idea on how to be able to use the stoichiometry of the reaction equation so as to solve the problem that we have at hand here.
Then we have;
Equation of the reaction; [tex]2H_{2} +O_{2} --- > 2H_{2}O[/tex]
Number of moles of the oxygen = 192 grams /32 g/mol
= 6 moles
If 1 mole of oxygen forms 2 moles of water
6 moles of oxygen would form = 6 * 2/1
= 12 moles of water
Mass of the water = 12 moles * 18 g/mol
= 216 g
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Find the similarities, differences, and relationships between coefficients and subscript. (At least 2 of each)
The subscripts are a part of the formulations and once the formulas for the reactants and products have been established, they cannot be changed.
What is the difference between coefficients and subscript?The subscripts are a component of the formulas, and they cannot be modified after the formulas for the reactants and products have been established. The number of each material participating in the reaction is indicated by the coefficients, which can be modified to make the equation more or less balanced.
Although both coefficient and subscript are numerical terms, they provide different information on a particular chemical reaction. Coefficient indicates the number of moles of a material, whereas subscript gives the number of atoms in a molecule, and this is the main distinction between coefficient and subscript.
A smaller-than-usual number, figure, symbol, or indicator that is placed either slightly above (superscript) or below (subscript) the standard line of type is referred to as a superscript or subscript (subscript).
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does the atomic mass change? why? why not? if it does what is it or what are the variations of it? in an hydrogen ion
Atomic mass of elements can change. The elements with same atomic number, but have different atomic mass or mass number is called an isotopes.
Atomic number of an element does not change. However variations in their atomic masses can happen. Atomic mass is the sum of protons and neutrons in the nucleus. Number of protons does not change, but number of neutrons can vary and such element occur in nature or can be laboratory made and are called isotopes.
There are 3 isotopes for hydrogen. Protium has an atomic number of 1 mass mass number 1 (meaning only one proton in the nucleus and no neutrons). Deuterium have an atomic number 1 and atomic mass 2 ( 1 proton and 2 neutrons). Tritium with atomic number 1 and atomic mass 3( 1 proton and 2 neutrons).
₁H¹ ₁H² ₁H³
Protium Deuterium Tritium
So atomic mass can vary in elements.
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thproium-232 is a radioactive isotipe of throium. how many neytrosna re located in the nucleus of theorum 232
142 neutrons are in the nucleus of theorem-232, which is a radioactive isotope of thorium.
The number of neutrons located in the nucleus of thorium-232 can be calculated using its atomic mass and atomic number. The atomic mass of thorium-232 is 232 and the atomic number is 90. The atomic number represents the number of protons in the nucleus, and since protons and neutrons have the same mass, we can calculate the number of neutrons by subtracting the atomic number from the atomic mass.
232 - 90 = 142
So, there are 142 neutrons located in the nucleus of thorium-232.
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what is chemistry and reasons for studying chemistry
The study of basic properties and behavior of matter is known as chemistry. It is a branch of natural science that studies everything from the atoms, molecules, and ions that make up a compound to the elements that make up matter:their composition,structure,characteristics, behavior, and what happpens when they interact.
Cooking is essentially a chemistry experiment. It's likely that you'll become a better cook if you comprehend the chemical processes involved in raising baked items, neutralizing acidity, or thickening sauces. Information on petroleum, product recalls, pollution, the environment, and technological advancements.
Your understanding of the world around you is aided by chemistry. Environmental contamination is without a doubt a major issue on a global scale. But how does it impact Earthly life? Basic chemical knowledge is necessary to comprehend how environmental contamination affects both living things and the atmosphere.
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a. rate of condensing > rate of bubbling b. rate of dissolution < rate of deposition c. rate of dissolution > rate of deposition d. rate of bubbling > rate of dissolving e. rate of dissolution
Dynamic equilibrium can be defined as rate of dissolution = rate of deposition. So, option D is correct.
Once a reversible reaction takes place in chemistry, a dynamic equilibrium is present. There is no net change because substances transition equally between reactants and products. The rate at which reactants and products form ensures that neither of their concentrations change. It is an example of a system that is in a constant state specifically.
An equation's equilibrium can be altered and pulled out of dynamic equilibrium by altering the temperature, pressure, or concentration of a reaction. This is the reason why if you open a Coke can and leave it outside for a while, it will ultimately turn "flat" and no longer have any bubbles. This is due to the fact that the soda can is no longer a closed system and the carbon dioxide is now free to interact with the environment. This throws it out of dynamic equilibrium and lets out carbon dioxide gas until there are no bubbles left.
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The complete question is:
Dynamic equilibrium can be defined as:
A) rate of bubbling > rate of dissolving
B) rate of dissolution > rate of deposition
C) rate of dissolution < rate of deposition
D) rate of dissolution = rate of deposition
how long does it take for boric acid suppositories to dissolve
Boric acid suppositories dissolve entirely in the in just a few minutes. While utilising a suppository, some people choose to
Boric acid suppositories dissolve entirely in the in just a few minutes. While utilising a suppository, some people choose to wear a . You can limit the growth of yeast by putting gelatin capsules containing boric acid into your . You might observe improvements in symptoms a few days after beginning medication. In most cases, the infection will go away in 1 to 2 weeks. Inconvenience in the are among the negative effects of boric acid use. after entering the capsule, there is a slight burning sensation. sluggish discharge.
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using the mass of kbr that you calculated on the previous slide, write a procedure for preparing 100ml of a 1.5m kbr solution. include specific quantities of all substances and describe any equipment that you would need to make this solution.
The procedure for preparing 100ml of a 1.5m kbr solution ,
1. Weigh exactly 17.85 g of KBr in a clean and dry 100 mL beaker.
2. Dissolve this salt in a minimum amount of distilled water (approximately 10-20 mL).
3. Transfer this diluted solution in a clean and dry 100 mL volumetric flask.
4. Dilute this solution up to the mark using distilled water.
5. This is 1.5 M KBr solution. Ready for use.
KBr refers to potassium bromide . In reality, potassium bromide (KBr) is a chemical substance. One of the common anticonvulsant medications used to treat canine and feline epilepsy is potassium bromide, sometimes known as KBr. This can be taken on its own or in conjunction with phenobarbital to control seizure activity. The odourless potassium bromide salt is a white crystalline powder, colourless crystals, or a white granular solid with a strong bitter flavour .
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open odyssey, go to the miscellaneous tab, find the solutions section and click on m i2 molarity vs molality. follow the instructions on the screen and click on all the available buttons. why is molality used instead of molarity in this project? volume changes with temperature under what conditions are the values of molarity and molality very different? high concentrations which value is higher? molality
The molality of the solvent does not change as a function of temperature. Molality is a concentration unit that is unaffected by temperature, it is utilised in this project in place of molarity.
What is molality?Molality, which is determined by the number of moles of solute per kilogram of solvent, is a unit used to describe the concentration of a solute in a solution. It has units of moles per kilogram (mol/kg) and is generally represented by the letter "m".
Since molality is a concentration unit that is unaffected by temperature, it is utilised in this project in place of molarity. The amount of moles of solute per kilogram of solvent is referred to as molality. The molality of the solvent does not change as a function of temperature because the solvent's volume does not. The amount of moles of solute per litre of solution, on the other hand, is referred to as molarity. The molarity fluctuates with temperature in the same way as the solvent's volume does.
In general, the difference between molarity and molality is greater when the concentration of a solution is high. For a solution with the same concentration, molality is almost always greater than molarity.
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Metamorphic rocks are made on the Earth's surface. true or false?
Metamorphic rocks are made on the Earth's surface. This statement is true.
Why are metamorphic rocks generally not found at the Earth's surface?The majority of mountain ranges on Earth are composed primarily of metamorphic rock. However, metamorphic rocks form deep within the Earth when intense heat and pressure force existing rocks to change their crystalline structure, resulting in the formation of a new type of rock.
Although metamorphic rocks form deep within the Earth's crust, they are frequently exposed on the planet's surface.
Thus, Metamorphic rocks are made on the Earth's surface. This statement is true.
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Using moles to balance equations
Use the amounts of each product and reactant
listed below to balance the equations for the
reaction between carbon dioxide and water.
CO2 + H₂O C6H12O6 + O2
CO₂ = 528g H₂O = 216g C6H12O6 = 360g
0₂ = 384g
Carbon dioxide and water combine to form glucose and oxygen (C6H12O6).
What's the balanced equation of CO2 h2o → c6h12o6 o2?Reaction C6H12O6+6O26CO2+6H2O C 6 H 12 O 6 + 6 O 2 → 6 C .
The equation for aerobic respiration is O 2 + 6 H 2 O, which is an oxidation or combustion reaction.
Carbon atom balance
6CO 2 +H 2 O C 6 H 12 O 6 +O 2
Equilibrate the hydrogen atom.
6CO 2 +6H 2 OC 6 H 12 O 6 +O2
The oxygen atom must be balanced.
6CO 2 + 6H 2 O + C 6 H 12 O 6 + 6O 2
The chemical formula for equilibrium is thus:
6CO 2 + 6H 2 O + C 6 H 12 O 6 + 6O 2.
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the most probable distribution of particles is the one with the group of answer choices highest enthalpy. lowest number of possible microstates. most symmetry. highest energy. largest number of possible microstates.
Option ( v) is correct. The most probable distribution of particles is the one with the largest number of possible microstates.
In an isolated system the entropy of the system is increased to its maximum value. A microstate is a specific way that can arrange the energy of the system. The more microstates the higher the entropy. The greater the number of microstates the greater the entropy. According to Boltzmann it is difficult to explain the behavior of microstates. In order to get the actual probabilities of a given microstate it is needed to figure out the probability for an individual microstate. A microstate is defined as a specific microscopic configuration of a thermodynamic system that the system may occupy with a certain probability in the course of its thermal fluctuations.
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The complete question is,
The most probable distribution of particles is the one with the group of answer choices:
(i) highest enthalpy.
(ii) lowest number of possible microstates.
(iii) most symmetry.
(iv)highest energy.
(v) largest number of possible microstates.
the most probable distribution of particles is the one with the group of largest number of possible microstates.
A microstate, also known as a ministate, is a sovereign state that often has a very tiny land area as well as a very small population. The terms "state" and "very small," however, are not clearly defined under international law.
The system's entropy rises to its highest level in an isolated system. A microstate is a particular configuration that the system's energy can take. The entropy increases with the number of microstates. The entropy increases with the number of microstates. Boltzmann claims that it is challenging to comprehend the behaviour of microstates. It is necessary to calculate the probability for each individual microstate in order to obtain the real probabilities for a certain microstate. A thermodynamic system may, with a certain probability, occupy a certain microscopic configuration called a microstate during its thermal fluctuations.
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Calculate the mass in grams of each sample.
3. 4. 62 mol of (NH4)2SO3
Molar mass of (NH4)2SO3 is 116.14 g/mol.(NH4)2SO3 is ammonium sulfite.mass of (NH4)2SO3 is 535.92g
Ammonia and sulphur dioxide in an aqueous solution can react to form ammonium sulfite:
2 NH3 + SO2 + H2O → (NH4)2SO3
mass=no.of moles*molecular weight
molar mass of (NH4)2SO3 =116.14 g/mol
mass=4.62*116
mass=535.92g
Gas scrubbers made of ammonium hydroxide, which are now antiquated, create ammonium sulfite to remove sulphur dioxide from power plant emissions. The Walther Process' foundation is the conversion. Ammonium sulphate can be produced by air oxidising the resultant ammonium sulfite.Sulfite of ammonium is a reducing agent. As it heats up and begins to decompose, it releases sulphur dioxide and nitrogen oxides.
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when determining a compounds empirical formula if your calculated mole amounts are not equal to whole numbers what
When determining a compound's empirical formula, if your calculated mole amounts are not equal to whole numbers, you must round up or down.
There are a few techniques you can employ to deal with decimal mole ratios between the atoms that make up your compound when you have to determine the empirical formula of the compound from its percent composition.
I won't walk you through the entire process because I'm going to presume you know how to get here. Let's say you have a compound including the elements A, B, and C, and you determine their mole ratios to be
A:2.33
B:1
C:1.67
Using mixed fractions in these circumstances is quite beneficial. A whole number and a regular (or appropriate) fraction are combined to form mixed fractions.
2.33= 2 1/3, or 7/3,
while 1.67 = 1 2/3. This makes the ratios equal to
A:7/3
B:1
C:5/3
Now multiply all of them by 3 to get rid of the denominator and you'll get the empirical formula
A₇B₃C₅
Your question is incomplete but most probably your full question was
When determining a compounds empirical formula if your calculated mole amounts are not equal to whole numbers what must you do?
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How many grams of sodium fluoride
(NaF) are dissolved in 3. 75 L of a
1. 55 M solution?
Molar Mass Na: 22. 99 g/mol
Molar Mass E: 19. 00 g/mol
164.22 grams of sodium fluoride are dissolved in 3.75 L of a 1.55 M solution.
To find the number of grams of sodium fluoride (NaF) dissolved in 3.75 L of a 1.55 M solution, you can use the formula:
molarity (M) x volume (L) x molar mass (g/mol) = mass (g)
Sodium fluoride (NaF) has the following molar mass:
22.99 g/mol (Na) + 19.00 g/mol (F) = 41.99 g/mol
So the mass of sodium fluoride dissolved in 3.75 L of a 1.55 M solution is:
mass (g) = 1.55 M x 3.75 L x 41.99 g/mol = 164.22 g
Therefore, 164.22 grams of sodium fluoride are dissolved in 3.75 L of a 1.55 M solution.
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a sample of methane (ch4) gas contains a small amount of helium. calculate the volume percentage of helium if the density of the sample is 0.70902 g/l at 0.08c and 1.000 atm.
The volume percentage of helium in the sample is 25.06%.
For the volume percentage of helium in the sample of methane gas, we will first need to determine the density of the helium and the density of the methane.
We know that the density of the sample is 0.70902 g/L at 0.08 °C and 1.000 atm and that the sample contains methane (CH4) and helium (He).
The density of methane at 0.08°C and 1.000 atm is 0.717 g/L and the density of Helium is 0.178 g/L at the same temperature and pressure.
To find the volume percentage of helium in the sample, we can use the formula:
% Volume of helium = [tex](\frac{density of helium}{density of sample})[/tex] × 100%
% Volume of helium = [tex](\frac{0.178}{0.70902} )[/tex] × 100%
% Volume of helium = 25.06%
So, the volume percentage of helium in the sample is 25.06%.
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the same net ionic process takes place when any strong acid reacts with any strong base. write the equation for that process
the same net ionic process takes place when any strong acid reacts with any strong base. When a strong acid reacts with a strong base, the net ionic equation for the process is:
H+ (aq) + OH- (aq) → H2O (l)
This reaction is known as a neutralization reaction, and it is characterized by the neutralization of the strong acid and base by forming water and a salt. In this equation, the acid (H+) donates a proton to the base (OH-), forming water (H2O) and a salt. The acid and base are said to be neutralized, and the resulting solution is neutral (neither acidic nor basic). This type of reaction is common in many chemical reactions and is often used in the laboratory to neutralize solutions and to titrate acids and bases.
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Which of the following accurately describes activation energy
Answer:
Option A
Explanation:
Activation energy is defined as the minimum amount of extra energy required by a reacting molecule to get converted into product. It can also be described as the minimum amount of energy needed to activate or energize molecules or atoms so that they can undergo a chemical reaction or transformation.
Answer: A. The minimum amount of energy required for a reaction to happen
Explanation:
Activation energy is defined as the minimum amount of extra energy required by a reacting molecule to get converted into product. It can also be described as the minimum amount of energy needed to activate or energize molecules or atoms so that they can undergo a chemical reaction or transformation.
Two electrons grouped together on an electron shell are called...
A. electron sets.
B. electron pairs.
C. Valence electrons
a group electrons is called electon pair.
Answer:
B. electron pairs.
Explanation:
A gas occupies a volume of 14. 5 L at 230 K. What will the temperature be it the gas
expands to 21. 8 L?
345. 8 K
1. 37 K
O 17. 4 K
1530K
A gas occupies a volume of 14. 5 L at 230 K. Option (C), 17.4 K will the temperature be it the gas expands to 21.8 L.
The relationship between the temperature, volume, and pressure of a gas is described by the ideal gas law, PV = nRT, where P is the pressure, V is the volume. We are given the initial volume and temperature of the gas and we are asked to find the final temperature when the gas expands to a different volume. The ideal gas law is an equation of state of a gas, which describes the relationship between the pressure, volume, and temperature of a gas. We are given V1, T1, and V2. The number of moles and pressure are not given so we can consider them constants.
The equation is :
V1/T1 = V2/T2
T2 = T1(V1/V2)
T2 = 230 K (14.5L / 21.8L) = 17.4 K
So the temperature will be 17.4 K if the gas expands to 21.8L.
Therefore, the correct answer is 17.4 K (Option C).
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Imagine you are a scientist employed by a manufacturer of cookware like pots and pans. Which of the materials in the table would you use for a ceramic baking dish, and why?
Answer:
As a scientist employed by a manufacturer of cookware, I would recommend using alumina (Al2O3) as the material for a ceramic baking dish.
Three of the primary components of air are carbon dioxide, nitrogen and oxygen in a sample containing a mixture of these gases at two atmosphere of pressure, with a partial pressure of : PCO2 = 30.185 mmHg, PN2 = 1009.525 mmHg. What is the partial pressure of oxygen?
The partial pressure of oxygen would be 0.63198 atm or 480.3047 mmHg.
Law of partial pressureAccording to Dalton's law of partial pressure, the pressure of a gas consisting of a mixture of gases is the sum of the partial pressure of individual gases in the mixture. This law is mathematically expressed as:
[tex]P_{total[/tex] = [tex]P_1 + P_2 + .....[/tex]
In this case, [tex]P_{total[/tex] = 2 atm, PCO2 = 30.185 mmHg, and PN2 = 1009.525 mmHg
1 mmHg = 0.00131579 atm
30.185 mmHg = 0.03972 atm
1009.525 mmHG = 1.3283 atm
Thus, PO2 = Ptotal - PCO2 - PN2
= 2 - 0.03972 - 1.3283
= 0.63198 atm
0.63198 atm = 480.3047 mmHg
In other words, the partial pressure of oxygen in the gas mixture would be 0.63198 atm or 480.3047 mmHg.
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1. What does the process of fracking release from the layers of Earth?
2. What does fracking use to release this limited substance?
3. How long has the process of fracking been used?
4. Why has there been a fracking “boom” in the United States in the past ten years?
5. What risks does fracking pose to our drinking water resources?
6. Do you think the cost (risk) of fracking is worth the benefit? Explain.
Pleaseeee someone help me!
In addition to altering the landform due to weathering, slope processes, and mass movement, fracking causes major lithosphere fissures.
What is fracking?A pressurised liquid is used in fracking, a well stimulation technique, to fracture bedrock strata.
Methane, an extremely powerful greenhouse gas, is released in massive quantities during fracking.
Since 1947, fracking has been carried out safely in the US. Fracking has been used to complete more than 1.7 million U.S. wells, yielding 600 trillion cubic feet of natural gas and more than seven billion barrels of oil.
However, the present fracking boom wasn't really ignited until two significant shifts occurred at the start of the twenty-first century.
Because the fracking fluid that is poured into rock to release gas frequently contains chemicals, improper fracking can damage water supplies.
Fracking has advantages since it boosts income, employment, economic activity, and house prices.
Thus, these are the risks fracking pose to our drinking water resources.
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a chemist carefully measures the amount of heat needed to raise the temperature of a 1.71 kg sample of a pure substance from 0.5 degrees celsius to 15/9 degrees celsius. the experiment shows that 3.66 kj of heat are needed. what can the chemist report for the specific heat capacity of the substance? round your answer to 3 significant digits.
The experiment shows that 3.66 kJ of heat are needed. 0.249 J/g°C or 249 J/kg°C, can the chemist report for the specific heat capacity of the substance.
The specific heat capacity of a substance is the amount of heat required to raise the temperature of a given mass of the substance by a certain amount. It is usually denoted by the symbol "c" and is measured in units of J/g°C or J/kg°C.
To calculate the specific heat capacity of the substance in this case, we can use the following formula:
c = Q / (m x ΔT)
where Q is the heat absorbed (or released) by the substance, m is the mass of the substance, and ΔT is the change in temperature.
In this case, the mass of the substance is 1.71 kg, the change in temperature is (15/9 - 0.5)°C = 14.6°C, and the heat absorbed is 3.66 kJ.
c = 3.66 kJ / (1.71 kg x 14.6°C)
= 0.249 J/g°C or 249 J/kg°C
Therefore, the chemist can report that the specific heat capacity of the substance is 0.249 J/g°C or 249 J/kg°C, rounded to 3 significant digits.
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