Stoichiometry

Front

What is stoichiometry?

Back

Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions based on the balanced chemical equations.

Front

What is theoretical yield?

Back

Theoretical yield is the maximum amount of product that can be produced in a chemical reaction based on the stoichiometric calculations from the balanced equation.

Front

What is actual yield?

Back

Actual yield is the amount of product that is actually obtained from a chemical reaction, which may be less than the theoretical yield due to various factors.

Front

What is percentage yield?

Back

Percentage yield is a measure of the efficiency of a reaction, calculated as (actual yield / theoretical yield) x 100%.

Front

What is a mole ratio?

Back

A mole ratio is the ratio of the coefficients of reactants and products in a balanced chemical equation, used to convert between moles of different substances.

Front

How do you calculate the percentage yield?

Back

Percentage yield = (actual yield / theoretical yield) x 100%.

Front

What is the balanced equation for the combustion of methane (CH4)?

Back

The balanced equation is CH4 + 2 O2 → CO2 + 2 H2O.

Front

How many moles of CO2 are produced from 110 g of CH4?

Back

6.85 moles of CO2 are produced from the combustion of 110 g of CH4.

Front

What is the significance of a balanced chemical equation in stoichiometry?

Back

A balanced chemical equation provides the mole ratios needed to calculate the amounts of reactants and products involved in a chemical reaction.

Front

What is the molar mass of iron (Fe)?

Back

The molar mass of iron (Fe) is approximately 55.85 g/mol.