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 conservation of mass.

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, reflecting the law of conservation of mass.

Front

How do you determine mole ratios?

Back

Mole ratios are determined from the coefficients of a balanced chemical equation.

Front

What is the theoretical yield?

Back

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

Front

What is the actual yield?

Back

The actual yield is the measured amount of a 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, multiplied by 100.

Front

What is the mole ratio of H₂O to H₃PO₄ in the reaction P₄O₁₀ + 6 H₂O → 4 H₃PO₄?

Back

The mole ratio of H₂O to H₃PO₄ is 6:4.

Front

How do you balance the reaction CaC₂ + H₂O → C₂H₂ + Ca(OH)₂?

Back

The balanced equation is 1 CaC₂ + 2 H₂O → 1 C₂H₂ + 1 Ca(OH)₂.

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement that represents 6.022 x 10²³ particles (atoms, molecules, etc.) of a substance.

Front

What is the significance of the coefficients in a balanced equation?

Back

Coefficients indicate the relative number of moles of each reactant and product involved in the reaction.