If we react 5.4g of sodium chloride with an unknown amount of fluorine gas, we produce 4.9g of sodium fluoride and 3.7g chlorine gas. How much fluorine was consumed in the reaction?

Answers

Answer 1

Answer:

4.43 g

Explanation:

The reaction between sodium chloride and flourine gas is given as;

NaCl + F2 --> NaF + Cl2

From the stochiometry of the equation;

1 mol of NaCl reacts eith 1 mol of F2 to form 1 mol of NaF and Cl2

Mass of 1 mol of F2 = 38g

Mass of 1 mol of sodium flouride, NaF = 42g

This means 38g of flourine reacted with NaCl to form 42g of NaF

xg of F2 would form 4.9g of NaF

38 = 42

x = 4.9

x = 4.9 * 38 / 42

x = 4.43 g


Related Questions

What compound do cells break down for energy in the process of cellular respiration?
O Oxygen
O Sunlight
Chloroplast
O Glucose

Answers

Answer:

Glucose

Explanation:

Glucose is broken down into water and carbon dioxide.

hope this helps! :)

How the calculation of the [OH-], pH and % ionization for 0.619 M ammonia (NH3) NH3 + H2O (liq) rightwards harpoon over leftwards harpoon NH4+ + OH- Kb = 1.8 x 10-5

Answers

Answer:

[OH⁻] = 3.34x10⁻³M; Percent ionization = 0.54%; pH = 11.52

Explanation:

Kb of the reaction:

NH3 + H2O(l) ⇄ NH4+ + OH-

Is:

Kb = 1.8x10⁻⁵ = [NH₄⁺] [OH⁻] / [NH₃]

As all NH₄⁺ and OH⁻ comes from the same source we can write:

[NH₄⁺] = [OH⁻] = X

And as [NH₃] = 0.619M

1.8x10⁻⁵ = [X] [X] / [0.619M]

1.11x10⁻⁵ = X²

3.34x10⁻³ = X = [NH₄⁺] = [OH⁻]

[OH⁻] = 3.34x10⁻³M

% ionization:

[NH₄⁺] / [NH₃] * 100 = 3.34x10⁻³M / 0.619M * 100 = 0.54%

pH:

As pOH = -log [OH-]

pOH = 2.48

pH = 14 - pOH

pH = 11.52

The abnormally high boiling point of HF as compared to HCl is primarily due to intermolecular forces of attraction called

A) network bonds
B) electrovalent forces
C) hydrogen bonds
D) van der Waals forces

Answers

Answer:

C) hydrogen bonds

Explanation:

The abnormally high boiling point of HF compared to HCl is primarily due to the intermolecular forces called hydrogen bonds.

Hydrogen bonds are intermolecular forces of attraction between polar molecules in which a hydrogen atom is directly joined to a highly electronegative atom (oxygen, nitrogen or fluorine).

Hydrogen bonds are very strong force of attraction compared to dipole - dipole attraction that holds the HCl together.

Suppose that 3.33 g of acetone at 25.0 °C condenses on the surface of a 44.0-g block of aluminum that is initially at 25 °C. If the heat released during condensation goes only toward heating the metal, what is the final temperature (in °C) of the metal block?

Answers

Answer:

68.6 °C

Explanation:

From conservation of energy, the heat lost by acetone, Q = heat gained by aluminum, Q'

Q = Q'

Q = mL where Q = latent heat of vaporization of acetone, m = mass of acetone = 3.33 g and L = specific latent heat of vaporization of acetone = 518 J/g

Q' = m'c(θ₂ - θ₁) where m' = mass of aluminum = 44.0 g, c = specific heat capacity of aluminum = 0.9 J/g°C, θ₁ = initial temperature of aluminum = 25°C and θ₂ = final temperature of aluminum = unknown

So, mL = m'c(θ₂ - θ₁)

θ₂ - θ₁ = mL/m'c

θ₂ = mL/m'c + θ₁

substituting the values of the variables into the equation, we have

θ₂ = 3.33 g × 518 J/g/(44.0 g × 0.9 J/g°C) + 25 °C

θ₂ = 1724.94 J/(39.6 J/°C) + 25 °C

θ₂ = 43.56 °C + 25 °C

θ₂ = 68.56 °C

θ₂ ≅ 68.6 °C

So, the final temperature (in °C) of the metal block is 68.6 °C.

The final temperature of the metal block is 74.97°C

What is the specific heat?

The specific heat of a substance is the required quantity of heat needed to raise the temperature of 1 gram of the substance by 1° C.

From the parameters given:

The mass of acetone = 3.33 g

The number of moles of acetone is:

[tex]\mathbf{= 3.33 g \times \dfrac{mol}{58.08 \ mol}}[/tex]

= 0.0573 mol

At standard conditions, the heat of vaporization of acetone is:

[tex]\mathbf{\Delta H = 32.0 \ kJ/mol \times 0.0578 \ mol } \\ \\ \mathbf{\Delta H = 1.8496 \ kJ } \\ \\ \mathbf{ \Delta H = 1.85 \times 10^3 \ J}[/tex]

Given that:

The mass of the metal (m) = 44.0 gThe initial temperature [tex]\mathbf{T_1}[/tex] = 25° CThe final temperature [tex]\mathbf{T_2 = ???}[/tex]

The specific heat of the aluminum is = 0.903 J/g° C

The heat energy can be computed as:

q = msΔT

q = 41 g × 0.903 J/g° C × (x - 25°C)

Using the calorimetry principle, heat energy lost by metal = heat energy gained by acetone.

i.e.

[tex]\mathbf{q_{(acetone)} gain = q_{(metal)} lost }[/tex]

[tex]\mathbf{-1.85 \times 10^3 \ J = - 41 g \times 0.903 \ J/g^0 C \times ( x - 25^0 c) }[/tex]

[tex]\mathbf{1.85 \times 10^3 \ J = 41 g \times 0.903 \ J/g^0 C \times ( x - 25^0 c) }[/tex]

[tex]\mathbf{(x - 25 ^0 C) = \dfrac{1.85 \times 10^3 \ J }{ 41 g \times 0.903 \ J/g^0 C}}[/tex]

[tex]\mathbf{(x - 25 ^0 C) = 49.97^0 C}}[/tex]

[tex]\mathbf{x = 49.97^0 C+25 ^0 C}}[/tex]

x = 74.97 °C

Learn more about specific heat here:

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Which element is most similar to fluorine in the way it reacts with other elements?

Answers

Answer:

The answer is chlorine

Explanation:

1.which electromagnetic wave has the; longest wavelength, lowest speed, highest frequency, and greatest energy ?

2. Which visible light wave has the; longest wavelength, lowest speed, highest frequency, and greatest energy?

(Please Help I would gladly appreciate it 100 points will be given)

Answers

Radio waves infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays are all types of electromagnetic radiation. Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.

3. Count the number of hydrogen atoms in 2 molecules of vitamin C (2c6H8O6

Answers

There are 16 hydrogen atoms

Due to the lower pressure on top of Mt. Everest, water can
boil before the temperature gets to 100°C. If pure water
begins to boil at 70°C on Mt. Everest, what is this
temperature in kelvins?
Select one:

a.273 K

b.163 K

c.343 K

d.373 K

Answers

c. 343K
70 degrees C + 273 = 343

How many atoms are in 6.3 moles of lead

Answers

Answer:

3.79 x 10²⁴atoms

Explanation:

Given parameters:

Number moles of lead  = 6.3moles

Unknown:

Number of atoms  = ?

Solution:

To solve this problem,

              1 mole of a substance contains  6.02 x 10²³ atoms

            6.3 mole of Pb  will contain 6.3  x 6.02 x 10²³ = 3.79 x 10²⁴atoms

Why do scientists use the scientific method?

Answers

Answer:

I think that the first one is right(A)

Much of the thermal energy within the Earth comes from atoms that decay. What is another major source of thermal energy within the
Earth?
A. gravitational energy left over from the formation of the Earth
B. thermal energy from the decay of dead plants and animals
c. thermal energy trapped by clouds and water vapor in the atmosphere
D. thermal energy absorbed by the Sun at the Earth's crust

Answers

Geothermal energy is heat produced by the Earth itself. It is a resource that may be gathered for human use and is renewable.

The correct option is (D) Thermal energy absorbed by the Sun at the Earth's crust

The friction and gravitational attraction that were produced when Earth was formed more than 4 billion years ago provide a modest amount of the core's heat. The continual production of heat on Earth, however, is mostly caused by the decay of radioactive isotopes like potassium-40 and thorium-232. From the surface to the core, the temperature of Earth increases with depth. The geothermal gradient is the term used to describe this progressive temperature variation. Rock that has partially melted is known as magma, which is gas- and bubble-filled. The lower crust and mantle both contain magma, which occasionally bubbles to the surface as lava.Nearby rocks and subsurface aquifers are heated by magma. Geysers, hot springs, steam vents, undersea hydrothermal vents, and mud pots are among ways that hot water can be emitted.They are all powered by geothermal energy. Their heat may be captured and used directly for heating, or their steam can be used to generate electricity.

Learn more about the Geothermal energy with the help of the given link:

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How many formula units are in 2.58 moles of Caci.?

Answers

Answer:

1.55 x 10²⁴ formula units

Explanation:

Given parameters:

Number of moles of CaCl₂   = 2.58moles

Unknown:

Formula units in the compound  = ?

Solution:

To solve this problem, we must understand that;

    1 mole of a substance contains 6.02 x 10²³ formula units

   2.58 moles will contain 2.58 x  6.02 x 10²³ formula units  

                                            = 1.55 x 10²⁴ formula units

Describe the relationship between an enzyme, substrate, and active site.

Answers

So what I know is that enzyme and substrate are like lock and key meaning that when the active site of the enzyme changes, the enzyme will not fit to the substrate which will lead the enzyme to denature. Hope this helps.

Which element forms more than one binary
compound with chlorine?

Са
Fe
Li
Zn

Answers

Answer:

fe

Explanation:

forms one binary compounds with chlorine

The chemical equation below shows the photosynthesis reaction.
6CO2 + 6H2O → C6H12O6 + 6O2
A reaction uses 528 g of CO2. How many grams of water are used in this reaction?

Answers

Answer:

12

Explanation:

The expression 1223 ÷ r can be used to find how many batches Tyra can make with the sugar she has. If r is 23 cup, how many batches of cookies can Tyra make?

Answers

Answer:

Tyra can make 53 batches

Explanation:

Given

[tex]Batches = \frac{1223}{r}[/tex]

Required

Find the number of batches when r = 23

To do this, we simply substitute 23 for r in [tex]Batches = \frac{1223}{r}[/tex]

So, we have:

[tex]Batches = \frac{1223}{23}[/tex]

[tex]Batches = 53.17[/tex]

Approximate:

[tex]Batches = 53[/tex]

Does anyone know how to do it

Answers

10. The first

11. When the prefix “mono” is added that element in the chemical formula is not written with a subscript. If the prefix is greater than one you write a subscript in the formula

pleaseee help haha im timed

Answers

Answer: aerobic respiration converts about 40% of the available energy of glucose into ATP!!!

A closed container is the best way to measure the volume of a
A. gas
B. liquid
C. solid
D. Both A and B are correct.

Answers

Answer:

A closed container is the best way to measure the volume of a liquid

4. Which of the following have mass? Select all that apply.
O A neon-filled tube.
A diamond.
Water in a glass
The helium in a balloon.

Answers

All of these EXCEPT helium in a balloon

Answer:

All except a diamond

Explanation:

The helium in the balloon has mass it fills the space its in.

The neon-filled tube has mass because it takes up space.

Water in a glass has mass because the water is taking up space.

A diamond does not because it does not take up space.

A student decides to dissolve crackers in their soup as fast as possible. They must first increase the surface area of the crackers. How could this be done? a.Break the crackers into pieces b.Pile the crackers on top of each other c.Wrap the crackers in plastic to keep them fresh d.Put crackers in the bottom of the bowl

Answers

Answer: The correct option is A ( Break the crackers into pieces.)

Explanation:

The rate of reaction between two substances can be affected by the following factors:

--> surface area of reacting substances

--> concentration

--> reaction mechanism

--> temperature

--> the presence of a catalyst and

--> pressure ( if gaseous)

Reagents in solution tend to react faster than reagents in solid form. This is because molecules are freer to move about and collide more effectively in solutions. For example, a lump of zinc will not react as fast as powdered zinc with dilute hydrochloric acid to produce hydrogen. This is the same with the reaction between the crackers and soup. To increase the reaction of the substances, the crackers needs to be broken into pieces(thus,increased surface area)

Here is a model that shows key information about Earth
and the Sun
Direction of
Earth's rotation
Axis
Which statement best explains the pattern of daytime and nighttime on
Earth?
A. The Sun must revolve around Earth once every 24 hours
B. Earth's axis of rotation must tilt back and forth every 12 hours.
C. Earth must complete one rotation on its axis every 24 hours.
D. The Sun's energy must come from a different direction every 12
hours

Answers

The statement information about earth and the sun direction of earth's rotation axis best explains the pattern of daytime and night-time on earth is " earth must complete one rotation on its axis every 24 hours".

What is sun?

The sun was composed of incredibly hot gases, as well as then it heats as well as illuminates the entire solar system.

What is earth?

The earth was referred to as a "one-of-a-kind" planet since that is the only one on the planet with ideal circumstances for life.

Day though night are caused by the Earth's diurnal revolution. From west to east, the earth rotates on its axis for around 24 hours. As a result, the sun appears to rotate from east to west, resulting in sunset and sunrise. except for polar is, which remains stationary in the north polar sky along the earth's axis, all those other stars move from east to west.

Therefore, the correct answer will be C.

To know more about earth and sun.

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Answer:

THE ANSWER IS (C.)

Explanation:

13. What is the charge of an aluminum ion that has 13 protons and 10 electrons?

Answers

Answer:

+ 3

Ex planation:

Al3+ indicates an ion of aluminum having a charge of + 3. I.e., since an aluminum atom normally has 13 protons and 13 electrons, this ion has 10 electrons (-10 charge) and 13 protons (+ 13 charge) giving it a charge of + 3 (-10 + 13 = +3).

hope this helps!

The answer is +3/ positive 3.

The role of an organism in its habitat
A. host
B. prey
C. niche
D. adaptation

Answers

Answer:

C. Niche

Explanation:

The role of an organism in it's habitat is it's niche.

________is the base unit for length in the metric system

Answers

Answer:

metric system

Explanation:

In the metric system, the basic unit of length is the meter. A meter is slightly larger than a yardstick, or just over three feet. The basic metric unit of mass is the gram. Finally, the basic metric unit of volume is the liter.

how glass tube filed with acidified potassium dichromate detect drunken driver

Answers

Answer:

See explanation

Explanation:

The reaction between alcohol and acidified potassium dichromate  is a redox reaction. This reaction can be used to detect a drunken driver.

Alcohols can be oxidized to aldehydes, ketones and carboxylic acids depending on the structure of the alcohol. Primary alcohols yield adehydes and carboxylic acids while secondary alcohols are oxidized to ketones.

The colour of the acidified potassium dichromate turns from orange to green when exposed to alcohols from the breath of a drunken driver.

the first stage of an blank is when clouds form; this is the cumulus stage

Answers

Answer:

thunderstorm

Explanation: The cumulus stage is the first stage in a thunderstorm and it involves clouds forming. We see the cloud that will become a thunderstorm as it is starting to form and grow. This is due to the rising levels of thermal energy.

Number 2 & 3 please !!<3

Answers

Answer:just for the ponits

Explanation:ima be a jenna

number of atoms in 10090 g Ne (PLEASE HELP!!)

Answers

Sorry can’t help with this one ):

Answer:

3012.51×10²³ atoms of Ne

Explanation:

Given data:

Mass of Ne = 10090 g

Number of atoms = ?

Solution;

Formula:

Number of moles = mass/ molar mass

Molar mass of Ne = 20.17 g/mol

Number of moles = 10090 g/ 20.17 g/mol

Number of moles = 500.25 mol

Number of atoms:

1 mole contain 6.022×10²³ atoms

500.25 mol × 6.022×10²³ atoms / 1 mol

3012.51×10²³ atoms

How many moles are in 1.204x10^24 atoms of a gas?

Please help!

Answers

Answer:

1.999 mol gas

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Using Dimensional AnalysisAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Explanation:

Step 1: Define

1.204 × 10²⁴ atoms gas

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Set up:                                [tex]\displaystyle 1.204 \cdot 10^{24} \ atoms \ gas(\frac{1 \ mol \ gas}{6.022 \cdot 10^{23} \ atoms \ gas})[/tex]Multiply/Divide:                  [tex]\displaystyle 1.99934 \ moles \ gas[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 4 sig figs.

1.99934 mol gas ≈ 1.999 mol gas

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