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Kinetic Theory of Gases

A cylinder co...

Question

A cylinder contains $68 g$ of ammonia gas at s.t.p.
How many moles of ammonia are present in the cylinder?

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Solution

$N o . o f m o l e s = \frac{m a s s i n g}{g r a m m o l e c u l a r m a s s}$
= $\frac{68}{17} = 4 m o l e s$
Hence, 4 moles of ammonia are present in the cylinder.

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