Chemistry MP3CP2 Review

Front

What is percent yield in a chemical reaction?

Back

Percent yield is the ratio of the actual yield of a product to the theoretical yield, expressed as a percentage. It indicates the efficiency of a reaction.

Front

How do you calculate theoretical yield?

Back

Theoretical yield is calculated based on the stoichiometry of the balanced chemical equation, using the amount of limiting reactant.

Front

What is the formula for percent composition by mass?

Back

Percent composition by mass = (mass of element in 1 mole of compound / molar mass of compound) x 100%.

Front

What is the percent composition of sulfur in MgSO4?

Back

The percent composition of sulfur in MgSO4 is 27%.

Front

What is a limiting reactant?

Back

A limiting reactant is the substance that is completely consumed in a chemical reaction, determining the maximum amount of product formed.

Front

What happens to a real gas compared to an ideal gas?

Back

Real gases deviate from ideal behavior due to intermolecular forces and the volume occupied by gas molecules.

Front

What is the molar mass of Cu2S?

Back

The molar mass of Cu2S is approximately 159.16 g/mol.

Front

How do you find the percent composition of a compound?

Back

To find the percent composition, divide the mass of each element by the total molar mass of the compound and multiply by 100.

Front

What is the significance of the balanced chemical equation?

Back

A balanced chemical equation shows the ratio of reactants to products, ensuring the law of conservation of mass is upheld.

Front

What is the role of stoichiometry in chemistry?

Back

Stoichiometry allows chemists to predict the quantities of reactants and products involved in a chemical reaction.