Question

When 6 grams of hydrogen was burnt with 6 grams of oxygen, 54 grams of water was produced. in other experiment when electric current passed through 36 grams of water then 4 grams of hydrogen and 32 grams of oxygen was formed.
i) calculate the mass ratio of hydrogen and oxygen which combine to form water
ii) calculate the mass ratio of hydrogen and oxygen when electric current was passed through the water
iii) write the name of the law of chemical combination which is verified by these experiments​

Answer 1

Answer:

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 oxygen.

Explanation:

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