Mole Concept

Mole Concept

1st - 10th Grade

21 Qs

quiz-placeholder

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Mole Concept

Mole Concept

Assessment

Quiz

Chemistry

1st - 10th Grade

Medium

Created by

bibi khan

Used 1+ times

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21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

How many moles are 98.3 grams of aluminum hydroxide, Al(OH)3? (Atomic mass of Al = 27, H= 1, O = 16)

1.26 moles

0.8 moles

7,673.4 moles

150 moles

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many atoms are contained in 25 g of NaBr? (Atomic mass of Na = 23, Br = 35)

102.96 molecules

0.24 molecules

1.45x1023 molecules

2.34 x 1020molecules

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many moles are in 3.01 x 1022 atoms of magnesium?

0.0500 moles
1.81 x 1046 moles
5.00 x 1021 moles
5.00 moles

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many grams are in 1.2 x 1024 molecules of CO? (molar mass of CO = 28 g/mol)

28.2 g

55.8 g

6.02 g

1.2 g

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A mole of Neon contains
6.02 x 1023 _____.

atoms
formula units
ions
molecules

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many grams are in 1.2 x 1024 molecules of CO? (molar mass of CO = 28 g/mol)

28.2 g

55.8 g

6.02 g

1.2 g

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the volume of 5 moles of oxygen gas at room temperature?

112 dm3

112 cm3

120 L

120 mL

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