Question

The number of molecules present in 1 dm of hydrogen at S.T.P is
a. 1.69 x 10^22
b. 2.69 x 10^22
c. 3.69 x 10^22
d. 1.06 x 10^22

Answer 1

Answer:

2.69×10^22

Explanation:

Hi

22.4l of hydrogen contains 6.02×10^22 molecules

1l of hydrgoen contains ------------?

by cross multiplying you get

0.26875

=2.69×10^22

hope this helps you buddy

Answer 2

Answer:

HEYA!!

answer=> (b) 2.69×10²²

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