what is quantity of water that should be added to 16 gm methanol to make the mile fraction of methanol as 0.25
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Answered by
32
Solution :
The ratio of the mole fraction of water to mole fraction of metanol = xH2O/xCH3OH
=> xH2O/xCH3OH
=> 0.75/0.25 =3
The number of moles of CH3OH, nCH3OH = 16/32 = 1/2 = 0.5
The number of moles of water, nH2O = 3 × 0.5 = 1.5
Weight of water, mH2O = 1.5 × 18 = 27g
Answer : mH2O = 27g
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Explanation:
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