15 grams of Urea is dissolved in 19 gram water the mole fraction of Urea in the solution is?
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chemical formula for urea is CH4N2O and for water is H2O
molar mass of CH4N2O is 60g/mol and water is 18g/mol
no.of moles= mass/ molar mass
no.of moles of urea = 15/60 = 0.25 and no. of moles of water is 19/18 =1.05
Explanation:
mole fraction = no . of moles of component urea/ total no.of moles of component ( urea+ water)
= 0.25 / 0.25+1.05 = 0.192
mole fraction = 0.192
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