Stoichiometry 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 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 the coefficients in a balanced equation?

Back

Coefficients are determined by adjusting the numbers in front of the chemical formulas to ensure that the number of atoms for each element is the same on both sides of the equation.

Front

What is the mole concept?

Back

The mole is a unit in chemistry that represents 6.022 x 10^23 particles (atoms, molecules, ions, etc.). It is used to convert between the number of particles and the amount of substance in grams.

Front

How do you calculate the number of moles from grams?

Back

To calculate moles from grams, use the formula: Moles = Mass (g) / Molar Mass (g/mol).

Front

What is molar mass?

Back

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is calculated by summing the atomic masses of all atoms in a molecule.

Front

What is the relationship between moles and volume in gases?

Back

At standard temperature and pressure (STP), one mole of an ideal gas occupies 22.4 liters.

Front

How do you find the mass of a product in a reaction?

Back

To find the mass of a product, first determine the moles of the reactant, use the stoichiometric coefficients to find moles of the product, and then convert moles to grams using the molar mass.

Front

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

Back

Coefficients indicate the relative amounts of reactants and products involved in a chemical reaction, allowing for stoichiometric calculations.

Front

What is a limiting reactant?

Back

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