Question

What is the amount of water produced when 8g of hydrogen is reacted with 32g of oxygen? a) 2moles b) 1mole c) 3 moles d) 0.5mole​

Answer 1

Answer: It is an option (B)

Step-by-step explanation:

Correct option is B)

The molecular masses of hydrogen, oxygen and water are 2 g/mole, 32 g/mole and 18 g/mole respectively.

2H

2

​

+O

2

​

→2H

2

​

O

2×2=4 g of hydrogen reacts with 1×32=32 g of oxygen to form 2×18=36 g of water.

Hence,

4

4

​

=1 g of hydrogen reacts with

4

32

​

=8 g of oxygen to form

4

36

​

=9 g of water.

9 grams of water can be produced when 8 g of hydrogen reacts with 8 g of oxygen.