Chemistry, asked by Rach123, 1 year ago

answer of Question number -19,20

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Answered by arbazhaider

Amount of oxygen in air is 1000 ml X 80% = 800 ml
I hope you understand

Rach123: no ur answer is wrong

Rach123: u have answered me question no. 19

Rach123: the correct answer is 0.21*10^23

arbazhaider: thkns

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