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Calculate the number of moles of water (...

Calculate the number of moles of water `(H_(2)O)` present in 4.5 g of water.

Text Solution

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Number of moles of water molecules ` = ("mass of water molecules")/("GMW") = (4.5)/18 = 0.25`
i.e., 0.25 moles of `H_(2)O` are there in 4.5 g of water.
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