100 ml of ethanol (d = 0.78g cc-1) is made upto a litre with pure water. Calculate the molality?

Question

Shailendra Kumar Sharma · Answer

now 100 ml of ethanol and 900 ml of water
100ml ethanol means .78*100 g of ethanol =78g ethanol

density of water is 1g/ml so 900g of water
so molality will be moles of solute/ weight of solution

=(78/46)/(900+78)
.0004 molal

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100 ml of ethanol (d = 0.78g cc-1) is made upto a litre with pure water. Calculate the molality?

100 ml of ethanol (d = 0.78g cc-1) is made upto a litre with pure water. Calculate the molality?

100 ml of ethanol (d = 0.78g cc-1) is made upto a litre with pure water. Calculate the molality?

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100 ml of ethanol (d = 0.78g cc-1) is made upto a litre with pure water. Calculate the molality?

100 ml of ethanol (d = 0.78g cc-1) is made upto a litre with pure water. Calculate the molality?

100 ml of ethanol (d = 0.78g cc-1) is made upto a litre with pure water. Calculate the molality?

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