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

Define Limiting Reagent.

Back

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

Front

How to identify the limiting reagent in a reaction?

Back

To identify the limiting reagent, calculate the moles of each reactant and determine which one produces the least amount of product.

Front

What is the mole ratio in a balanced chemical equation?

Back

The mole ratio is the ratio of moles of one substance to the moles of another substance in a balanced chemical equation.

Front

What is the formula to calculate percent yield?

Back

Percent yield = (actual yield / theoretical yield) x 100%.

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 reactants, based on stoichiometric calculations.

Front

What is the actual yield?

Back

The actual yield is the amount of product that is actually obtained from a chemical reaction.

Front

How do you convert grams to moles?

Back

To convert grams to moles, use the formula: moles = mass (g) / molar mass (g/mol).

Front

What is the molar mass of HCl?

Back

The molar mass of HCl is approximately 36.46 g/mol.

Front

What is the balanced equation for the combustion of B2H6?

Back

B2H6 + 3O2 → 2HBO2 + 2H2O.