Mole Concept
What is the mass of 1.5 moles of calcium carbonate (CaCO₃)?
Select the correct option:
Solution
150 g
- Determine Molar Mass of CaCO3:
- Ca=40,C=12,O3=3×16=48.
- Total Molar Mass =40+12+48=100 g/mol.
- Calculate Mass:
- Mass=Number of moles×Molar mass
- Mass=1.5 mol×100 g/mol=150 g.
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About This Question
- Subject
- chemistry
- Chapter
- some basic concepts in chemistry
- Topic
- mole concept
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
150 g
- Determine Molar Mass of CaCO3:
- Ca=40,C=12,O3=3×16=48.
- Total Molar Mass =40+12+48=100 g/mol.
- Calculate Mass:
- Mass=Number of moles×Molar mass
- Mass=1.5 mol×100 g/mol=150 g.
This easy difficulty chemistry question is from the chapter some basic concepts in chemistry, covering the topic of mole concept. It appeared in the 2025 exam.
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