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Mole Concept

Authored by Eighteen Queltaden

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Used 2+ times

Mole Concept
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a mole in chemistry?

A) A small burrowing mammal
B) A unit that measures mass
C) A quantity that represents 6.022 × 10²³ particles of a substance
D) A unit used to measure volume

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Avogadro's number?

A) 3.14 × 10²³
B) 6.022 × 10²³
C) 1.00 × 10²⁴
D) 9.81 × 10²²

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many moles are in 18 grams of water (H₂O)? (Molar mass of H₂O = 18 g/mol)

A) 1 mole
B) 0.5 moles
C) 2 moles
D) 1.8 moles

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the molar mass of carbon dioxide (CO₂)? (Atomic masses: C = 12, O = 16)

A) 28 g/mol
B) 32 g/mol
C) 44 g/mol
D) 48 g/mol

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the molar mass of oxygen gas (O₂)? (Atomic mass of O = 16)

A) 16 g/mol
B) 32 g/mol
C) 24 g/mol
D) 48 g/mol

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between moles, mass, and molar mass?

A) Moles = Mass × Molar Mass
B) Moles = Mass / Molar Mass
C) Moles = Molar Mass / Mass
D) Moles = Volume × Molar Mass

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

One mole of any substance contains the same number of particles as one mole of any other substance.

A) True
B) False

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