Mole Test

Mole Test

Assessment

Flashcard

Chemistry

9th - 12th Grade

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?

Back

A mole is a unit of measurement in chemistry that represents 6.02 x 10^23 particles (atoms, molecules, ions, etc.).

2.

FLASHCARD QUESTION

Front

How do you convert grams to moles?

Back

To convert grams to moles, use the formula: \( \text{moles} = \frac{\text{grams}}{\text{molar mass}} \).

3.

FLASHCARD QUESTION

Front

What is the molar mass of NiS?

Back

The molar mass of NiS (Nickel Sulfide) is approximately 90 grams per mole.

4.

FLASHCARD QUESTION

Front

How many moles are in 57.2 grams of NiS?

Back

Using the formula: \( \text{moles} = \frac{57.2 \text{ grams}}{90 \text{ g/mol}} \approx 0.63 \text{ moles} \).

5.

FLASHCARD QUESTION

Front

What is Avogadro's number?

Back

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

6.

FLASHCARD QUESTION

Front

How do you find the number of molecules in a given mass of a substance?

Back

To find the number of molecules, first convert grams to moles, then multiply by Avogadro's number.

7.

FLASHCARD QUESTION

Front

What is the mass of 1 mole of CO2?

Back

The molar mass of CO2 (Carbon Dioxide) is approximately 44 grams per mole.

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