Grade 11Inorganic Chemistry
Mole fraction of glucose is 0.25.Calculate molarity and molality if density is 1.5g/ml
1 Answer
Vikas TU
Dear Student,
From the Molarity formulae:
From the Molarity formulae:
Molality= moles of solutex100/mass of dissolvable.
mass of dissolvable =0.75x18( since dissolvable is water) = 13.5;
m= 0.25*100/13.5=1.85m.
Volume of water= 18/1.5 = 12ml.
along these lines M= 0.25*100/12=2.083 moles/ml.
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