Stoichiometry Unit Review

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 conservation of mass.

Front

What is a mole ratio?

Back

A mole ratio is a conversion factor derived from the coefficients of a balanced chemical equation, used to relate the amounts of reactants and products.

Front

How do you convert grams to moles?

Back

To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in grams per mole).

Front

What is theoretical yield?

Back

Theoretical yield is the maximum amount of product that can be produced from a given amount of reactant, calculated based on stoichiometry.

Front

What is actual yield?

Back

Actual yield is the measured amount of product obtained from a chemical reaction.

Front

What is percentage yield?

Back

Percentage yield is the ratio of the actual yield to the theoretical yield, expressed as a percentage.

Front

Why is it necessary to convert grams to moles in stoichiometry?

Back

It is necessary to convert grams to moles in stoichiometry because chemical reactions are based on the number of particles (moles), not mass.

Front

What does high accuracy and high precision mean in measurements?

Back

High accuracy means measurements are close to the true value, while high precision means measurements are consistent and reproducible.

Front

What does low accuracy and high precision mean in measurements?

Back

Low accuracy means measurements are far from the true value, but high precision means they are consistent with each other.

Front

How many moles are in 6 g of Carbon (C)?

Back

0.5 moles of C (using the molar mass of Carbon, which is 12 g/mol).