Chemistry and Stoichiometry

Chemistry and Stoichiometry

Assessment

Flashcard

Chemistry

12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

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.

2.

FLASHCARD QUESTION

Front

Define a limiting reactant.

Back

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

3.

FLASHCARD QUESTION

Front

What is the formula for percent yield?

Back

Percent yield = (Actual yield / Theoretical yield) x 100%.

4.

FLASHCARD QUESTION

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms for each element is the same on both sides of the equation.

5.

FLASHCARD QUESTION

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, calculated based on stoichiometric ratios.

6.

FLASHCARD QUESTION

Front

What is the difference between actual yield and theoretical yield?

Back

Actual yield is the amount of product actually obtained from a reaction, while theoretical yield is the calculated maximum amount based on stoichiometry.

7.

FLASHCARD QUESTION

Front

How many moles of a substance are in 12 grams of carbon (C)?

Back

The number of moles = mass (g) / molar mass (g/mol). For carbon, moles = 12 g / 12 g/mol = 1 mole.

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