ICSE Class 10 Chemistry 2014 Solved Paper
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A cylinder contains 68 g
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Question : 74
Total: 88
How many molecules of ammonia are present in the cylinder?
[ N − 14 , H − 1 ]
Solution:
One mole of NH 3 = 6.022 × 10 23 molecules
∴ 4 moles of NH 3 contains
= 4 × 6.022 × 10 23
= 2.4088 × 10 24 molecules.
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