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The number of molecules in 4.25 g of amm...

The number of molecules in 4.25 g of ammonia are approximately

A

`0.5 xx 10^23`

B

`1.5 xx 10^23`

C

`2.5 xx 10^23`

D

`3.5 xx 10^23`

Text Solution

Verified by Experts

The correct Answer is:
B
No. of molecules of `NH_3` in 17g ` = 6.02 xx 10^23`
No. of molecules of `NH_3` in 4.25g
` = (6.02 xx 10^23)/(17) xx 4.25 = 1.5 xx 10^23`
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