Question

Calculate the number of molecules in 8.0cm−3 of gaseous phosphine, P H3, at RTP.

Answer 1

Answer:

moles of ph3 = (8/1000)/24x10^4 = 3.33x10^-8 {covert cm to dm}

3.33x10^-8 X 6.02 x 10^23

=2.006 x 10^16X1000

=2.006 x 10^20

Explanation:

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