Mole conversions

Mole conversions

Assessment

Flashcard

Chemistry

11th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

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 10^23 particles (atoms, molecules, ions, etc.).

2.

FLASHCARD QUESTION

Front

How do you convert molecules to grams?

Back

To convert molecules to grams, use the formula: grams = (number of molecules / Avogadro's number) x molar mass.

3.

FLASHCARD QUESTION

Front

What is Avogadro's number?

Back

Avogadro's number is 6.022 x 10^23, which is the number of atoms, molecules, or particles in one mole of a substance.

4.

FLASHCARD QUESTION

Front

What is the molar mass of CO (carbon monoxide)?

Back

The molar mass of CO is approximately 28.01 g/mol.

5.

FLASHCARD QUESTION

Front

How many grams are in 1 mole of Zn (zinc)?

Back

1 mole of Zn has a mass of approximately 65.38 g.

6.

FLASHCARD QUESTION

Front

What is the mass of 1 mole of C6H12O6 (glucose)?

Back

1 mole of C6H12O6 has a mass of approximately 180.18 g.

7.

FLASHCARD QUESTION

Front

How do you calculate the number of moles from grams?

Back

To calculate moles from grams, use the formula: moles = grams / molar mass.

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