Question

2 gram of hydrogen contain how many molecules?​

Answer 1

Answer:

Explanation:

Hydrogen =H

Now

Hydrogen has 1 atomic mass

So

2 gram =1

1 gram = 1/2

1 gram = 0.5

So 2 =0.5×2

1.0

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Answer 2

Soln :

No. of molecules in1g of

hydrogen = 6.022×10^23

=>No of molecules in 2g of

hydrogen = 2× 6.022×10^23

Hence , two gram of hydrogen contains 2× 6.022 × 10^23

=12.044 × 10^23

=1.2044 × 10^24.

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