mole concept
Authored by mohamed mohamuud
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12th Grade
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The molecular mass of H₂SO₄ is:
96 amu
98 amu
100 amu
102 amu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The number of particles in one mole of a substance is called:
Atomic number
Mass number
Avogadro's number
Molarity
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The atomic mass of chlorine (Cl) is:
32
35.5
40
23
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The molecular mass of SO₂ is:
48 amu
64 amu
80 amu
32 amu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The formula mass of Ca(OH)₂ is:
54 amu
74 amu
98 amu
88 amu
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT true about Avogadro's number?
It represents the number of particles in one mole of a substance.
It is equal to 6.022 × 10²³.
It is used to convert moles to grams.
It applies to atoms, molecules, and ions.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
One mole of any substance contains:
6.022 × 10²² particles
6.022 × 10²³ particles
3.011 × 10²³ particles
1.022 × 10²⁴ particles
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