Question

calculate the number of moles of H2 molecule in 72 grams of water​

Answer 1

Answer:

Here, molecular mass of H is 1.

So,H x 2 = 2 g

2 g of hydrogen = 1 mole.

72 g of water=1 x 72/ 2 =36

By AVOGADRO NO, we know that

1 mole of H contains  6.022 x 10²³ molecules.

36 mole of H contains= 6.022 x 10²³ x 36

 

Explanation:

Answer 2

Answer:

8 moles

Explanation:

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