Molar Masses Answers

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1
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A gas cylinder contains exactly 1 mole of oxygen gas (O2). How many molecules of oxygen are in the cylinder?

A
4.01 × 1022 molecules
B
6.02 × 1023 molecules
C
9.03 × 1024 molecules
D
2.89 × 1026 molecules
4

Potassium (K): g/mol

Answers:
Potassium (K)::39.10
Osmium (Os)::190.23
Manganese (Mn)::54.94

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Molar Masses Answers — LA-Chemistry A