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caculate the mass of urea required to prepare 2.5 kg of 0.5 m aq.soln.?

caculate the mass of urea required to prepare 2.5 kg of 0.5 m aq.soln.?

Grade:12

2 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
9 years ago
mass of urea required to prepare 2.5 kg of 0.5 m aq.soln.
2NH3 +CO2 -----NH2CONH2 +H2O
molar mass of urea =60

molality =.5
.5=number of mole of urea/2.5
number of mole=1.25
weight of the urea =1.25*60 gm =75 gram
Shriya Mehrotra
12 Points
9 years ago
sir but the ans is 74.1,is it ok.?

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