Molar Conversions Review

Molar Conversions Review

Assessment

Flashcard

Chemistry

10th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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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 many atoms are in one mole of any substance?

Back

One mole of any substance contains 6.022 x 10^23 atoms.

3.

FLASHCARD QUESTION

Front

What is the molar mass of iron (Fe)?

Back

The molar mass of iron (Fe) is approximately 55.85 g/mol.

4.

FLASHCARD QUESTION

Front

How do you convert grams to moles?

Back

To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in g/mol).

5.

FLASHCARD QUESTION

Front

What is the formula to calculate the number of particles from moles?

Back

Number of particles = Moles x 6.022 x 10^23.

6.

FLASHCARD QUESTION

Front

If you have 2 moles of CO2, how many molecules do you have?

Back

You have 2 x 6.022 x 10^23 = 1.2044 x 10^24 molecules of CO2.

7.

FLASHCARD QUESTION

Front

What is the mass of one mole of sulfur (S)?

Back

The mass of one mole of sulfur (S) is approximately 32.07 grams.

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