Question

The mass of a molecule of a compund having molecular mass pf 842 will be?

Answer 1

The mass of 1 molecule of a substance is 4.65×10^23.

4.65×10^23×842

=3.9153E+26

I don't know correct or incorrect.

I hope you understand.

Answer 2

Answer:

Explanation:

Thanks for A2A.

Mass of one atom of Carbon = 12 amu

So mass of 60 atoms of Carbon = 12 x 60 = 720 amu.

Similarly mass of one atom of Hydrogen = 1 amu.

So mass of 122 atoms of Hydrogen = 122 x 1 = 122 amu.

Total mass in amu = 842 amu.

Now we know that 1 amu = 1.66 x 10^-24 gm

So mass of 842 amu will be

842 x 1.66 x 10^-24 gm, which will be equal to

1.397 x 10^-21 gms.