Solution Stoichiometry

Front

What is solution stoichiometry?

Back

Solution stoichiometry is the calculation of reactants and products in chemical reactions in solution, using molarity and volume to determine the amounts of substances involved.

Front

Define molarity (M).

Back

Molarity (M) is a measure of concentration, defined as the number of moles of solute per liter of solution.

Front

How do you calculate moles from molarity and volume?

Back

Moles = Molarity (M) × Volume (L).

Front

What is the balanced equation for the reaction of phosphoric acid with zinc?

Back

2 H₃PO₄ + 3 Zn → Zn₃(PO₄)₂ + 3 H₂.

Front

How do you convert grams of a substance to moles?

Back

Moles = Mass (g) / Molar Mass (g/mol).

Front

What is the product of a neutralization reaction?

Back

The products of a neutralization reaction are water (H₂O) and an ionic salt.

Front

What is the molarity of a solution if 0.5 moles of solute are dissolved in 2 liters of solution?

Back

Molarity = 0.5 moles / 2 L = 0.25 M.

Front

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

Back

Mass = Moles × Molar Mass.

Front

What is the stoichiometric ratio in a chemical reaction?

Back

The stoichiometric ratio is the ratio of moles of reactants to moles of products as indicated by the coefficients in a balanced chemical equation.

Front

What is the concentration of HCl if 145 mL is needed to react with 25 g of FeS?

Back

The concentration of HCl is 3.9 M.