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What mass of (NH(4))2CO(3) with contains...

What mass of `(NH_(4))_2CO_(3)` with contains `6.022 xx 10^(23)` hydrogen atoms?

A

1.92 g

B

12 g

C

19.2 g

D

25.4 g

Text Solution

Verified by Experts

The correct Answer is:
B
`(NH_(4))_(2)CO_(3)`
`because` 8 mole H-atom present in 1 mole `(NH_(4))_(2)CO_(3)`
`therefore 6.022 xx 10^(23)` H-atom present in `(1)/(8) xx 1` mole `(NH_(4))_(2)CO_(3)`
or 1 mole H-atom
`therefore` Mass of `(1)/(8)` mole `(NH_(4))_(2)CO_(3) = (1)/(8)[36+12+48]=96//8=12g`
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