Chemistry, 20.11.2020 14:00 biancaceja755

Methane (CH4) is the main component of marsh gas. Heating methane in the presence of sulfur produces carbon disulfide and hydrogen sulfide as the only products. (a) Write the balanced chemical equation for the reaction of methane and sulfur. (Use the lowest possible coefficients. Include states of matter under SATP conditions in your answer.)(b) Calculate the theoretical yield of carbon disulfide when g of methane is reacted with an equal mass of sulfur.

Answers: 3

Show answers

Answers

Answer from: eggg65

(a). The balanced chemical reaction will be:

$\rm CH_4\;(g)+\;4\;S\;(s)\rightarrow\;CS_2\;(l)+\;2\;H_2S\;(g)$

(b). 120 grams of sulfur will produce 71.25 grams of carbon disulfide.

The heating of methane in the presence of sulfur can be given by:

$\rm CH_4\;+\;S\;\rightarrow\;CS_2\;+\;H_2S$

(a). The lowest possible coefficients have been used to balance the number of elements on both sides i.e. reactant and the product.

$\rm CH_4\;+\;4\;S\;\rightarrow\;CS_2\;+\;2\;H_2S$

The state of the elements has also been mentioned in the chemical equation. The state of methane is gas, sulfur is solid, carbon disulfide is liquid and hydrogen disulfide is gas.

Thus the balanced chemical reaction will be:

$\rm CH_4\;(g)+\;4\;S\;(s)\rightarrow\;CS_2\;(l)+\;2\;H_2S\;(g)$

(b). When 120 grams of sulfur reacts, the yield of carbon disulfide will be:

From the balanced equation, 4 moles of sulfur will give 1 mole of carbon disulfide.

4 moles of Sulfur = mole $\times$ molecular weight

4 moles of Sulfur = 4 $\times$ 32

4 moles of Sulfur = 128 grams.

1 mole of carbon disulfide = 76 grams.

So, 128 grams of sulfur produces, 76 grams of carbon disulfide.

Thus, 120 grams of sulfur will produce = $\rm \dfrac{76}{128}\;\times\;120$ grams Carbon disulfide

120 grams of sulfur will produce = 71.25 grams of Carbon disulfide.

Thus, 120 grams of sulfur will produce 71.25 grams of carbon disulfide.

For more information about a chemical reaction, refer to the link:

link

Answer from: marine7643

71.25 g

Explanation:

Methane + Sulfur = Carbon Disulfide + Hydrogen Sulfide

The equation is given as;

CH4 + S --> CS2 + H2S

Upon balancing, we have;

CH4(g) + 4S(s) → CS2(l) + 2H2S(g)

Theoretical yield of carbon disulphide;

Equal masses of 120g

The limiting reactant is sulphur It determines how much of the product is formed.

From the equation;

4 mol of S produces 1 mol of CS2

upon converting to masses using; Mass = number of mol * Molar mass

4 mol of S = 4 * 32

1 mol of CS2 = 76g

128g of S produces 76g of C2, 120g would produce ?

128 = 76

120 = x

x = 120 * 76 / 128

x = 71.25g

Answer from: Quest

hi,

the capital city of australia is canberra.

Answer from: Quest

i can ! i just need to know what the paragraph is! : p

Another question on Chemistry

Chemistry, 22.06.2019 09:00

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

Answers: 1

Answer

Chemistry, 22.06.2019 11:00

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it

Answers: 1

Answer

Chemistry, 22.06.2019 13:50

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.

Answers: 1

Answer

Chemistry, 22.06.2019 22:10

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added

Answers: 1

Answer

You know the right answer?

Methane (CH4) is the main component of marsh gas. Heating methane in the presence of sulfur produces...

Questions