Question
What is the number of molecules in 2.125 g of ammonia?
MHT CET
Chemistry
Some Basic Concepts of Chemistry
2026
MHT CET 2026 (20 April Shift 2)
MHT CET Chemistry Question (2026) — Solution
Options
- A. 6.022 10^ 23
- B. 3.011 10^ 23
- C. 1.505 10^ 22
- D. 7.527 10^ 22
Answer
D. 7.527 10^ 22
Step-by-step solution
Molar mass of ammonia (NH_3) = 14 + 3 = 17 g/mol Number of moles of ammonia = 2.125 17 = 0.125 mol Number of molecules = 0.125 6.022 10^ 23 = 7.527 10^ 22 Answer: 7.527 10^ 22
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