Science, asked by Anshuljain, 1 year ago

If 100 gram of water is decomposed how many grams of oxygen and hydrogen are obtained

Answers

Answered by nikitasingh79
127
Water is a compound which always consists of the same two elements hydrogen and oxygen combine together in the same constant proportion of 1:8 by mass(1 part by mass of hydrogen and 8 parts by mass of oxygen).

If we decompose 100 grams of pure water by passing electricity through it then 11 grams of hydrogen and 89 grams of oxygen obtained. This experiment shows that water always consists of the same two elements hydrogen and oxygen combine together in the same constant proportion of 11: 89 or 1:8 by mass.

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Hope this will help you....
Answered by myrakincsem
162
Well, we know that there are 3 atoms in water, one of oxygen and 2 of hydrogen. And you can determine the mass of oxygen in water
Which is 16amu while the mass of hydrogen is 1 amu (2 hydrogen means 2 amu mass)

We know total mass of water is 18 amu  so the oxygen percentage in water will be = (16/18)*100= 88.9% approxiamately 89% 

The remaining 11 % will be hydrogen 
So in 100 g of water 89 g will be of oxygen while 11 g will be of hydrogen.
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