Stoichiometry Review

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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.

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What is a mole in chemistry?

Back

A mole is a unit of measurement used to express amounts of a chemical substance, defined as exactly 6.022 x 10²³ particles (atoms, molecules, etc.).

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What is the theoretical yield?

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The theoretical yield is the maximum amount of product that can be produced in a chemical reaction based on the stoichiometric calculations.

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What is the actual yield?

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The actual yield is the amount of product that is actually obtained from a chemical reaction, which may be less than the theoretical yield due to various factors.

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What is percent yield?

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Percent yield is a measure of the efficiency of a reaction, calculated as (actual yield / theoretical yield) x 100%.

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What is a balanced chemical equation?

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A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, reflecting the conservation of mass.

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How do you calculate moles from grams?

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

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What is a mole ratio?

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A mole ratio is a ratio of the coefficients of reactants and products in a balanced chemical equation, used to convert between moles of different substances.

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What is the significance of excess reactants?

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Excess reactants are substances that are not completely consumed in a chemical reaction, allowing for the maximum amount of product to be formed.

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How do you determine the limiting reactant?

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