Answer:
Kp = 0.949
Explanation:
Hello there!
In this case, according to the given chemical reaction:
[tex]2SO_2(g) +O_2(g) \rightleftharpoons 2SO_3(g)[/tex]
It is possible to set up the equilibrium expression as shown below:
[tex]Kp=\frac{p_{SO_3}^2}{p_{SO_2}^2p_{O_2}}[/tex]
Whereas the initial pressure of SO2 was 3.43 atm and that of O2 was 1.61 atm. Now, since the partial pressure of O2 decreased to the 0.809 atm, it is possible to calculate the change in the pressure of O2 via:
[tex]x=1.61atm-0.809atm=0.801atm[/tex]
Which is actually applied to SO3 and SO2 according to the stoichiometry in the equilibrium expression to calculate Kp:
[tex]Kp=\frac{(2*x)^2}{(3.43-2x)^2(0.809)}[/tex]
Thus, by plugging in x, we obtain:
[tex]Kp=\frac{(2*0.801)^2}{(3.43-2*0.801)^2(0.809)}\\\\Kp=0.949[/tex]
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Which two changes would make this reaction product-favored? 3H2 + N2 ⇄ 2NH3 + energy  A. Decreasing the pressure  B. Increasing the temperature  C. Increasing the pressure  D. Reducing the temperature
Answer:C and D
Explanation:Just did it
Increasing the pressure and Decreasing the temperature are the two changes would make this reaction product-favored.
What is Equilibrium ?It is a state when a reaction is reversible and both forward and reverse reaction occur simultaneously at the same rate .
In the process of manufacture of Ammonia , both forward and reverse reaction are taking place
N₂(g) + 3H₂ (g) → 2NH₃ (g)
2NH₃(g) → N₂ (g) + 3H₂ (g)
when these reaction occur at same rate , the state is called equilibrium and is represented by
N₂ (g) + 3H₂(g) ⇔ 2NH₃(g) +Heat
As we can see from the equation , heat is produced in the forward reaction so if we increase the temperature the reverse reaction will be favored ,
On decreasing temperature the reaction will become product favored .
While on increasing the Pressure the manufacture of Ammonia increases.
Therefore Option C and Option D are the two changes would make this reaction product-favored.
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Identify an alkene and carboxylic acid using primary observations
If the unknown substance decolorize bromine water, it is an alkene. If it does not, litmus paper is used to test it. If the paper turns red, then the substance may be a carboxylic acid, and the reaction with sodium carbonate serves as additional confirmation. It is not a carboxylic acid if it does not react with sodium carbonate. A substance is not an alkene or a carboxylic acid if it does not decolorize bromine water and is not acidic.
What is the flowchart for identification of an alkene and carboxylic acid?The following flowchart can be used to recognize an alkene and a carboxylic acid:
1. Start with the hypothetical unknown substance.
2. Use bromine water to test the substance.
a. An alkene is a substance that discolors bromine water.
b. Move on to the following stage if the compound does not lighten bromine water.
3. Use universal indicator paper or litmus paper to test the chemical.
a. The substance might be a carboxylic acid if it is acidic and causes the paper to turn red.
b. Go to the following step if the chemical is not acidic.
4. Use sodium carbonate to evaluate the substance.
a. A substance is a carboxylic acid if it reacts with sodium carbonate to release carbon dioxide gas.
b. The chemical is not a compound if it does not react with sodium carbonate.
Therefore, if the unknown substance decolorize bromine water, it is an alkene. If it does not, litmus paper is used to test it. If the paper turns red, then the substance may be a carboxylic acid, and the reaction with sodium carbonate serves as additional confirmation.
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Your question is incomplete, most probably the complete question is:
TASK 2 - Pass 2B.P4 Identify an alkene and carboxylic acid using primary observations. To achieve 2B.P4, learners should follow guidance to identify an alkene and a carboxylic acid (for example, ethanoic acid) from primary observations. Learners will be expected to identify an alkene in the way described in 1B.4. For ethanoic acid this is by its pH and its reaction with sodium carbonate. The guidance given to the learners could be in the form of a flowchart.
How many moles of Mg(OH)2(aq) would be required to neutralize 6.0 mol HCl(aq)?
Answer:
[tex]3.0molMg(OH)_2[/tex]
Explanation:
Hello there!
In this case, for these types of acid-base neutralizations, it is crucial to firstly set up the chemical reaction taking place between the acid and the base; in this case HCl and Mg(OH)2 respectively, whose products are obtained by switching around the anions and cations as shown below:
[tex]HCl(aq)+Mg(OH)_2(aq)\rightarrow MgCl_2(aq)+H_2O(l)[/tex]
Which must be balanced to accurately predict the mole ratio on the reactants side:
[tex]2HCl(aq)+Mg(OH)_2(aq)\rightarrow MgCl_2(aq)+2H_2O(l)[/tex]
Whereas we can see a 2:1 mole ratio of the acid to the base; thus, the moles of Mg(OH) required for the neutralization of 6.0 moles of HCl turn out to be:
[tex]6.0molHCl*\frac{1molMg(OH)_2}{2molHCl} \\\\=3.0molMg(OH)_2[/tex]
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If a drum skin vibrates with a frequency of 100 Hz, how many times does it move up and down each second?
( Chemistry )
A sample of gas initially has a volume of 2.25 L at 350 K and a pressure of 1.75 atm. What will be sample pressure if the volume is
changed to 1.00 L and the temperature to 750 K
O 3.75 atm
O 1.84 atm
O 3.94 atm
O 8.44 atm
O 0.119 atm
Answer:
8.44 atm
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 2.25 L
Initial temperature (T₁) = 350 K
Initial pressure (P₁) = 1.75 atm
Final volume (V₂) = 1 L
Final temperature (T₂) = 750 K
Final pressure (P₂) =?
The final pressure of the gas can be obtained as illustrated below:
P₁V₁/T₁ = P₂V₂/T₂
1.75 × 2.25 / 350 = P₂ × 1 / 750
3.9375 / 350 = P₂ / 750
Cross multiply
350 × P₂ = 3.9375 × 750
350 × P₂ = 2953.125
Divide both side by 350
P₂ = 2953.125 / 350
P₂ = 8.44 atm
Thus, the final pressure of the gas is 8.44 atm.
Which process takes place in the conversion of iron into steel?
Iron is changed into steel by blowing oxygen through the molten metal from the Blast Furnace. This oxidises the impurities in the molten metal. Carbon is a major impurity in Blast Furnace metal.
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Answer:
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Lenses are made to have different focal points. What two properties of a lens
affect the focal length?
A. Where the object is located
O B. Whether the image is virtual or real
O C. The material the lens is made from
O D. The centers of curvature of the two sides of the lens
Which element is similar to the properties bromine?
Answer: Fluorine
Explanation: It belongs in the same group as Bromine
Question
How much of 3 M NaOH will be required to make 100 mL of 0.05 M NaOH?
Select the correct answer below:
5 mL
1.7 mL
0.15 mL
30 mL
Answer:
1.7 mL
Explanation:
start with formula M1V1=M2V2
then plug in values (3)V1=(100)(.05) and solve for V1
V1= 1.66
According to molar concentration, 1.7 ml of of 3 M NaOH is required to make 100 ml of of 0.05 M NaOH.
What is molar concentration?Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.
The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.
In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.
In case of 2 solutions, molarity is determined as, M₁V₁=M₂V₂
Substitution of values gives, V₁=0.05×100/3=1.7 ml.
Thus, 1,7 ml of 3 M NaOH will be required to make 100 mL of 0.05 M NaOH.
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Choose the options below that are true of chemical equilibria.
A. The reaction proceeds in the forward and reverse directions at the same rate.
B. Both the forward and the reverse reactions are achievable.
C. The relative amounts of all species must be different.
D. There is no net change in concentrations of reactants and products.
Answer:
A. The reaction proceeds in the forward and reverse directions at the same rate.
B. Both the forward and the reverse reactions are achievable.
D. There is no net change in concentrations of reactants and products.
Explanation:
Chemical equilibrium can be defined as the state of a reversible reaction in which the concentration (rate) of the forward reaction is equal to the concentration (rate) of the backward or reverse reaction. Thus, both the reactants and products of the chemical equation don't have the tendency to change with respect to time.
Hence, the options that are true of chemical equilibria include the following;
I. The reaction moves in both forward and reverse directions simultaneously i.e at the same rate.
II. The chemical equation can attain both forward and reverse reactions.
III. The concentrations of both reactants and products are the same i.e there's no net change.
Answer:
A B D knewton
Explanation:
Name
Period
GAS STOICHIOMETRY REVIEW
Please answer the following on separate paper using proper units and showing
all work. Please note that these problems require a balanced chemical
equation.
1. Carbon monoxide reacts with oxygen to produce carbon dioxide. If 1.0 L of
carbon monoxide reacts with oxygen at STP,
a. how many liters of oxygen are required to react?
b. How many liters of carbon dioxide are produced?
Answer:
don't trued the ebitly dude. rub
How many moles are in 8.7 x 104 atoms of oxygen?
How many moles of iron will be produced from 6.20 moles of carbon monoxide reacting with excess iron oxide
Explanation:
..........................m
Given [H3O+] = 3.06x10-10 M, find the [OH-].
Show your calculation for full credit
Answer:
3.27*(10^-5) M
Explanation:
For 25°C:
[H3O+] *[OH-] =(10^-14)-->
[OH-]=(10^-14)/[H3O+]-->
[OH-]=(10^-14)/(3.06*10^-10)-->
[OH-]=3.27*(10^-5) M
How do you know a chemical reaction has occurred?
Answer:
To tell if a chemical reaction has occurred look at its color change, temperature change, Precipitate formation, gas production, and light emission.
Can somebody please help me!!!
Answer:
force are called roll
Explanation:
force your answer give me five Points
Answer:
friction
Explanation:
The other terms honestly just don't make any sense in this context. Round objects experience less friction, since they have less of their surface touching the ground at a time. Imagine a bowling bowl: only a small part of the ball is ever touching the ground at one instant. Now imagine a waffle: almost all of the surface is touching the ground.
What is standard pressure in atmospheres?
a.10
b.1
c.5
d.2
What volume would 9.23 moles of oxygen gas occupy at 825 mmHg and 45 C
Answer:
Explain:- 22.4L Imol Page 10 Many gas law problems involve calculating the volume of a gas produced by the reaction of volumes of other gases. The problem solving strategy that we have used throughout your chemistry course is still the same. 10.
The volume would 9.23 moles of oxygen gas occupy at 825 mmHg and 45 C 22.4L.
What is an ideal gas law ?According to the Ideal Gas Law, all gases contain the same number of molecules at the same temperature, pressure, and volume (but not the same mass).
When the temperature and pressure are close to the point of transforming into a liquid or solid, the Ideal Gas law does not apply.
There are four governing assumptions for a gas to be "ideal": The volume of the gas particles is insignificant. The gas particles are all the same size and have no intermolecular forces with one another. According to Newton's Laws of Motion, the gas particles move at random.
Given :
Volume = ?
Number of moles = 9.23 moles
Temperature = 318K
Pressure = 825 mmHg = 1.08 atm
By an ideal gas equation
PV = nRT
V = nRT/ P
= 9.23 × 0.0821 × 318 / 1.08
= 22.4L
Thus, The volume would 9.23 moles of oxygen gas occupy at 825 mmHg and 45 C is 22.4L.
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Write the chemical symbols for three different atomic cations that all have 14 protons.
Explanation:
The symbols for three different cations with 14 protons are Si²⁺, Si⁴⁺, and Si³⁺. An element with 14 protons must be silicon, Si. Its electron configuration is [Ne] 3s²3p², so it could lose up to four valence electrons. The most likely cations are Si²⁺, Si⁴⁺, and Si³⁺ (or Si⁺)
How many grams of K2Cr2O7 can be dissolved at 279 grams of water at 90°C?
Answer:
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC? Solubility Curve DRAFT. 10th - 12th grade. 3326 times. Chemistry. 63% average accuracy. 3 years ago ... When 20 grams of potassium chlorate, KClO 3, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as: answer choices . supersaturated. saturated.
Explanation:
What are two main ways that water is being polluted or wasted
Answer:
Chemical waste from factories is sometimes dumped into rivers and lakes, or directly into the ground. Pesticides (chemicals that kill insects) applied to farmland enter surface water and groundwater, often in large quantities. Leaks from underground storage tanks for liquids like gasoline go directly into groundwater.
Explanation:
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The gas phase decomposition of hydrogen peroxide at 400 °C
H2O2(g)H2O(g) + ½ O2(g)
is second order in H2O2 with a rate constant of 0.650 M-1 s-1.
If the initial concentration of H2O2 is 8.00×10-2 M, the concentration of H2O2 will be 1.70×10-2 M after
seconds have passed.
Answer:
t = 71.3 s
Explanation:
Hello there!
In this case, since the second-order integrated law is given by the following equation:
[tex]\frac{1}{[H_2O_2]} =\frac{1}{[H_2O_2]_0}+kt[/tex]
Thus, given the initial and final concentration of hydrogen peroxide and the rate constant, we obtain the following time:
[tex]\frac{1}{[0.0170M]}-\frac{1}{0.0800M}=0.650M^{-1}s^{-1}t\\\\t=\frac{46.32M^{-1}}{0.650M^{-1}s^{-1}} \\\\t=71.3s[/tex]
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Environments have changed over millions of years. Which of these would be best for a scientist to study when investigating these environmental changes?
A. volcanic deposits
B. weather forecasts
C. fossil records
D. ocean currents (There is no science subject so ima put mathematics)
Answer:
c
Explanation:
fossil records
What would a curve with the shape of an isoceles triangle indicate?
How many grams of Mg(NO3), are necessary to
make 1500 mL of a 0.50 M solution?
Answer:
1.1 × 10² g
Explanation:
Step 1: Given data
Concentration of the solution (C): 0.50 M (0.50 mol/L)Volume of solution (V): 1500 mL (1.500 L)Step 2: Calculate the moles of Mg(NO₃)₂ (solute)
Molarity is equal to the moles of solute (n) divided by the liters of solution.
C = n/V
n = C × V
n = 0.50 mol/L × 1.500 L = 0.75 mol
Step 3: Calculate the mass corresponding to 0.75 moles of Mg(NO₃)₂
The molar mass of Mg(NO₃)₂ is 148.3 g/mol.
0.75 mol × 148.3 g/mol = 1.1 × 10² g
intermolecular dehydration of alkanols will gives what?
Answer:
One way to synthesize alkenes is by dehydration of alcohols, a process in which alcohols undergo E1 or E2 mechanisms to lose water and form a double bond. The dehydration reaction of alcohols to generate alkene proceeds by heating the alcohols in the presence of a strong acid, such as sulfuric or phosphoric acid, at high tempera (sorry if this is wrong )
According to Boyle's law, what will happen to the volume of a gas if its pressure decreases and its temperature stays constant? A it's volume will change shape. B) its volume will increase C) it's volume will not be affected by the change in pressure D) it's volume will decrease
What are the organisms that swim in the upper region of the open ocean?
Answer:
Epipelagic (sunlight)
Explanation:
Examples of organisms living in this zone are plankton, floating seaweed, jellyfish, tuna, many sharks, and dolphins.
Are based on the intrinsic properties of the chemical
Answer:
In materials science, an intrinsic property is independent of how much of a material is present and is independent of the form of the material, e.g., one large piece or a collection of small particles. Intrinsic properties are dependent mainly on the fundamental chemical composition and structure of the material.
Explanation:
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