Question

Find the number of hydrogen molecul present in 1.8 grams of water.​

Answer 1

Answer:

Hope this helps you

Explanation:

Thus 1.8g consists 6.02 * 10^22 molecules.

Answer 2

We know that, 1 molecule of water consists of 10 electrons (2 electrons each of two hydrogen atoms and 8 electrons of one oxygen atom).

The number of molecules present in 1.8 g of water.

18gofH2Ocontains6.023×1023molecules

⇒1.8gofH2Ocontains′x′molecules

x=181.8×6.023×1023

=106.023×1023=6.023×1022molecules.

∴ Number of electrons in 1.8 g of water =6.023×1022×10=6.023×1023