Question

How many molecules of water are there in 36gram of water.? with EXPLANATION

Answer 1

Answer:

H2O is the formula for Water.

Molecular mass = 2(H)+1(O)

= 2*1 + 1*16 = 2 + 16 = 18 gm

1 gm molecule of water = 18 g of water.

18gm of water contain 6.023 x 10^23 molecules of water

For 36 gm of water contain

36x 6.023 x 10^23/18

= 2 x 6.023 x 10^23 molecules of water

2x6.023x10^23 molecules of water

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Answer 2

1 mole of water contains 6.023×10²³ molecules.

Molecular weight of water is 18 grams

Given that there are 36 grams.

Means two moles of water.

This contains 12.046×10²³ molecules.

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