Question

what is the mass in grams of 5 mples of water?

Answer 1

Five moles of water whould have a mass of 90.05 g. If the number of water molecules is Avogadro's number, it would be one mole of water. Because carbon weighs 12 AMU per atom (most common isotope), and one mole of carbon weighs 12 grams, one mole of water would weigh 18 grams.

Answer 2

1 Mole of water weighs about 18 grams

5 moles weigh 18 × 5 = 90

Weight of 5 moles of water is 90 grams

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