Given a quantity in moles of reactant or product, use a...

Given a quantity in moles of reactant or product, use a mole-mole factor from the balanced chemical equation to calculate the number of moles of another substance in the reaction. Carbon disulfide and carbon monoxide are produced when carbon is heated with sulfur dioxide. $$ 5 \mathrm{C}(s)+2 \mathrm{SO}_{2}(g) \stackrel{\Delta}{\longrightarrow} \mathrm{CS}_{2}(l)+4 \mathrm{CO}(g) $$ a. How many moles of $C$ are needed to react with 0.500 mole of $\mathrm{SO}_{2} ?$ b. How many moles of $\mathrm{CO}$ are produced when 1.2 moles of $\mathrm{C}$ reacts? c. How many moles of $\mathrm{SO}_{2}$ are needed to produce 0.50 mole of $\mathrm{CS}_{2} ?$ d. How many moles of $\mathrm{CS}_{2}$ are produced when 2.5 moles of C reacts?

Given a quantity in moles of reactant or product, use a mole-mole factor from the balanced chemical equation to calculate the number of moles of another substance in the reaction.
Carbon disulfide and carbon monoxide are produced when carbon is heated with sulfur dioxide.
$$
5 \mathrm{C}(s)+2 \mathrm{SO}_{2}(g) \stackrel{\Delta}{\longrightarrow} \mathrm{CS}_{2}(l)+4 \mathrm{CO}(g)
$$
a. How many moles of $C$ are needed to react with 0.500 mole of $\mathrm{SO}_{2} ?$
b. How many moles of $\mathrm{CO}$ are produced when 1.2 moles of $\mathrm{C}$ reacts?
c. How many moles of $\mathrm{SO}_{2}$ are needed to produce 0.50 mole of $\mathrm{CS}_{2} ?$
d. How many moles of $\mathrm{CS}_{2}$ are produced when 2.5 moles of
C reacts?

Key Concepts

Stoichiometry

Stoichiometry is the branch of chemistry that deals with the quantitative relationships between reactants and products in a chemical reaction. It involves using the balanced chemical equation to determine how much of each substance is involved in the reaction, ensuring that matter is conserved throughout the process.

Balanced Chemical Equations

A balanced chemical equation represents a chemical reaction in which the number of atoms for each element is equal on both the reactant and product sides. The coefficients in these equations indicate the relative number of moles of each substance needed or produced, which is critical for performing accurate mole-to-mole calculations.

Mole-to-Mole Conversions

Mole-to-mole conversions involve using the ratio of coefficients from a balanced chemical equation to convert between amounts, in moles, of different substances. This technique is essential for determining how many moles of a particular reactant or product correspond to a given number of moles of another substance in the reaction.

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