Question

How many atoms of hydrogen are there in 18g of water?

Answer 1

it is equal to Avagadro's no (NA),namely 6.022×10 to the power 23.if we have one mole of water then we know that we will have a mass of 2 grams ( for 2moles of H atoms) +16 grams (for 1 mole O atom) =18 grams.
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Answer 2

Answer:

18 g of water will contain ⇒1×12.046×1023=12.046×1023 atoms of hydrogen. Therefore, 12.046×1023 atoms of hydrogen are present in 18 gram of water.

Explanation:

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