Stoichiometry

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What is Stoichiometry?

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Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions based on the balanced equations.

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What is a mole ratio?

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A mole ratio is a ratio between the amounts in moles of any two compounds involved in a chemical reaction, derived from the coefficients of the balanced equation.

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What is theoretical yield?

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Theoretical yield is the maximum amount of product that can be produced from a given amount of reactants, calculated based on stoichiometric principles.

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What is actual yield?

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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 a limiting reactant?

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

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What is an excess reactant?

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An excess reactant is a substance that is not completely used up in a chemical reaction, remaining after the reaction has gone to completion.

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How do you calculate the number of moles from grams?

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

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What is the molar mass of potassium nitrate (KNO3)?

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The molar mass of potassium nitrate (KNO3) is approximately 101.1 g/mol.

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

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To determine the mass of a product formed, first calculate the moles of the limiting reactant, then use the mole ratio from the balanced equation to find moles of the product, and finally convert moles to grams.

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What is the significance of balancing a chemical equation?

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Balancing a chemical equation ensures that the law of conservation of mass is obeyed, meaning the number of atoms of each element is the same on both sides of the equation.