Stoichiometry: Determining the Value of x

Question:

For the following reaction, determine the value of x:

4 C + S8 --> 4 CS2

3.2 mol S8 yield x mol CS2

Answer:

To find the moles of CS2 produced from 3.2 moles of S8, multiply 3.2 by 4 based on the stoichiometric ratio from the reaction 4 C + S8 --> 4 CS2, which gives 12.8 moles of CS2.

Stoichiometry is a crucial concept in chemistry that allows us to determine the relationship between reactants and products in a chemical reaction. In this case, we are given the reaction:

4 C + S8 --> 4 CS2

From the balanced equation, we can see that for every 1 mole of S8 that reacts, 4 moles of CS2 are produced. Therefore, if 3.2 moles of S8 react, the amount of CS2 produced would be:

(3.2 mol S8) x (4 mol CS2/1 mol S8) = 12.8 mol CS2

Therefore, the value of x is 12.8 mol CS2. This calculation is based on the stoichiometric ratio provided by the balanced chemical equation.

Stoichiometry calculations are fundamental in understanding the amounts of reactants and products in a chemical reaction. By following the principles of stoichiometry, we can predict and calculate the quantities of substances involved in a reaction.