Question

FIND THE NUMBER OF HYDROGEN ATOM PRESENT IN 6 gm OF WATER..??

Answer 1

hope this helps ☺....

Answer 2

HOLA SIS!!
Rajdeep here....

Chemical formula of water : H2O
Molecular mass of water [H = 1, O = 16] = 2x1 + 16 = 18
Number of H atoms in 18g of water = 2 [since molecular formula is H2O].

Now, apply unitary method.
18g water contains 2 hydrogen atoms.
1g water contains $\frac{2}{18}$ Hydrogen atoms.
Hence, 6g water contains:
[tex] \frac{2×6}{18} \\= \frac{12}{18} \\= 0.67[/tex] atoms of Hydrogen.

Thus, 6g water contains 0.67 atoms or 2/3 atoms of hydrogen.

Thanks!!