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

What is the theoretical yield?

Back

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

Front

What is the mole ratio?

Back

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

Front

How do you calculate the number of moles from grams?

Back

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

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What is the significance of STP in gas calculations?

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STP (Standard Temperature and Pressure) is used as a reference point for gas calculations, defined as 0°C (273.15 K) and 1 atm pressure.

Front

How many liters of gas are in one mole at STP?

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At STP, one mole of an ideal gas occupies 22.4 liters.

Front

What is the balanced equation for the combustion of methane (CH4)?

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The balanced equation is: CH4 + 2 O2 → CO2 + 2 H2O.

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How do you determine the limiting reactant in a chemical reaction?

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The limiting reactant is determined by calculating the amount of product each reactant can produce and identifying the one that produces the least.

Front

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 is often less than the theoretical yield.

Front

How do you convert moles of one substance to moles of another in a reaction?

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Use the mole ratio from the balanced chemical equation to convert between moles of different substances.