Question

the ratio of hydrogen and oxygen in water by mass is : (i) 2:8. (ii) 1:8. (iii)2:1. (iv)1:16.​

Answer 1

Step-by-step explanation:

the ratio of hydrogen and oxygen in water by mass is 1.8

• The atomic masses of H and O are 1 g/mol and 16 g/mol respectively.

Answer 2

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Answer:

$\large\boxed{\red \bigstar \:\sf(ii)\:1.8}$

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Step-by-step explanation:

We know that,

• The atomic masses of,

• H = 1 g/mol.

• O = 16 g/mol.

therefore,

• In H²O, the ratio of hydrogen and oxygen by mass will be :

⇒ 2 : 16 = 1 : 8.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━