40g of NaoH dissolved in 300g of water calculate mole fraction of NaoH and water
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Explanation:
we know mole fraction is equal to
= apna mole / total mole .
and given information is in grams . therefore convert grams into moles by the formula
= mass / molar mass .
40 gram NaOH = 40/ 40 =1 mol
300 grams of water = 300/ 18= 16.7 mol.
now we have the moles , put them in formula and you will get the answer .
mole fraction of NaOH= APNA MOL / TOTAL MOLE .
= 1/16.7+1=0 .59
mole fraction of water = 16.7 / 16.7+1 =0.943 .
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