One-Step Molar Conversions

One-Step Molar Conversions

Assessment

Flashcard

Chemistry

10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the first step in any molar conversion problem?

Back

Start with the given and its units.

2.

FLASHCARD QUESTION

Front

What is Avogadro's number?

Back

Avogadro's number is 6.02 x 10^23, which represents the number of molecules in one mole of a substance.

3.

FLASHCARD QUESTION

Front

How do you convert moles of a substance to molecules?

Back

Multiply the number of moles by Avogadro's number (6.02 x 10^23).

4.

FLASHCARD QUESTION

Front

How do you convert molecules of a substance to moles?

Back

Divide the number of molecules by Avogadro's number (6.02 x 10^23).

5.

FLASHCARD QUESTION

Front

What is the molar mass of H2O?

Back

The molar mass of H2O is 18 g/mol.

6.

FLASHCARD QUESTION

Front

How do you convert grams of a substance to moles?

Back

Divide the mass in grams by the molar mass of the substance.

7.

FLASHCARD QUESTION

Front

How do you convert moles of a substance to grams?

Back

Multiply the number of moles by the molar mass of the substance.

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