Question

How many oxygen atom are present in 10 ml H2O

Answer 1

Molecular wt of h2 o =18
18 g contains 6×10'23 molecules of h20
1g = 1ml
If 18 g = 6×10'23
1 g /ml = 6× 10'33÷18
= 3.3× 10 22
10 ml = 3.3 ×10 23
So 10 ml of contains 3.3×10 23 number of molecular of h20
No of o atomes = 3.3×10'23 ×1 atom of o

Answer 2

Answer:

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