Question

What is the number of moles of hydrogen atom in 72 g of water?​

Answer 1

Answer:

Since there are two H and one O, we obtain the weight 18 (1+1+16). The molecular weight of any substance in grams is equal to one mole of it. Therefore, 1 mole of water has a molecular weight of 18g. Since there are 4 moles of water present, we simply multiply the two, 4x16=72.

Answer 2

Answer:

Since there are two H and one O, we obtain the weight 18 (1+1+16). The molecular weight of any substance in grams is equal to one mole of it. Therefore, 1 mole of water has a molecular weight of 18g. Since there are 4 moles of water present, we simply multiply the two, 4x16=72.

Explanation:

MARK MR BRAINLIEST

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