Homework Answers
We know, Molar mass of water =18g/mol
18 g of water = 1mol of water
=> 1 g of water = 1/18 mol of water
=> 250 g of water = (250/18) mol of water
=13.89 mol of water.
Again, 1 mol of water contains = 6.022×1023 molecules
=> 13.89 moles of water contain = 6.022×1023× 13.89 molecules
=8.36×1024 molecules
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