Stoichiometry Practice Flashcard

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 Mole?

Back

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

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 conservation of mass.

Front

How do you determine the number of moles from grams?

Back

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

Front

What is the Empirical Formula?

Back

The empirical formula is the simplest whole-number ratio of atoms of each element in a compound.

Front

What is a Limiting Reagent?

Back

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

Front

How do you find the ratio of moles in a balanced equation?

Back

The ratio of moles can be found by comparing the coefficients of the reactants and products in a balanced chemical equation.

Front

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

Back

Coefficients indicate the relative number of moles of each substance involved in the reaction.

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How do you convert moles to grams?

Back

To convert moles to grams, use the formula: Mass (g) = Moles x Molar Mass (g/mol).

Front

What is the Molar Mass of H2O?

Back

The molar mass of H2O (water) is approximately 18.02 g/mol.