Stoichiometry Formulas

Front

What is the formula for Percent Yield?

Back

Percent Yield = (actual yield ÷ theoretical yield) x 100

Front

What is the theoretical yield in a chemical reaction?

Back

Theoretical yield is the maximum amount of product that can be produced from a given amount of reactants, based on stoichiometric calculations.

Front

What is the actual yield in a chemical reaction?

Back

Actual yield is the amount of product that is actually produced when the reaction is carried out.

Front

How do you determine the limiting reactant in a chemical reaction?

Back

The limiting reactant is the reactant that is completely consumed first, limiting the amount of product formed.

Front

What is stoichiometry?

Back

Stoichiometry is the calculation of reactants and products in chemical reactions based on the conservation of mass.

Front

How do you convert moles to grams?

Back

To convert moles to grams, multiply the number of moles by the molar mass of the substance.

Front

What is the molar mass of KCl?

Back

The molar mass of KCl (Potassium Chloride) is approximately 74.55 g/mol.

Front

If 2.65 moles of KClO3 are available, how many grams of KCl can be formed?

Back

To find grams of KCl formed, use stoichiometry based on the balanced equation for the reaction.

Front

What is the relationship between moles and volume in gases at STP?

Back

At Standard Temperature and Pressure (STP), 1 mole of any gas occupies 22.4 liters.

Front

How do you calculate the number of moles from grams?

Back

To calculate moles from grams, divide the mass of the substance by its molar mass.