Chapter 4 - 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

What is the molar mass of C₂H₅OH (ethanol)?

Back

The molar mass of C₂H₅OH is 46.07 g/mol.

Front

How do you calculate concentration in molarity?

Back

Concentration (Molarity) = moles of solute / liters of solution.

Front

What is a double displacement reaction?

Back

A double displacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds.

Front

What is percent yield in a chemical reaction?

Back

Percent yield is the ratio of the actual yield to the theoretical yield, multiplied by 100.

Front

How do you find the theoretical yield?

Back

The theoretical yield can be calculated using stoichiometric ratios from a balanced chemical equation.

Front

What is the significance of the limiting reactant?

Back

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

Front

What is the formula for calculating moles?

Back

Moles = mass (g) / molar mass (g/mol).

Front

What is the role of water in a neutralization reaction?

Back

In a neutralization reaction, water is produced when an acid reacts with a base, neutralizing their properties.