Basic Concepts of Chemistry
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2022
Easy
Single Choice
The molar mass of \( \text{H}_2\text{O} \) is approximately:
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2021
Easy
Single Choice
Avogadro's number \( N_A \approx 6.022 \times 10^{23} \) represents the number of particles in:
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2023
Easy
Integer
How many moles are in \( 36\,\text{g} \) of water \( (M = 18\,\text{g/mol}) \)?
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