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iris [78.8K]
3 years ago
6

Dissolving 16 g of urea (MW= 60 g/mol) in 39 g of water produces 42.3 ml of solution. Determine the molarity of this solution

Chemistry
1 answer:
Genrish500 [490]3 years ago
8 0

Hey there!:

Molar mass urea = 60 g/mol

Number of moles of solute:

moles solute = mass solute / molar mass

moles solute = 16 / 60

moles solute => 0.2666 moles of urea

Volume in liters:

42.3 mL / 1000 => 0.0423 L

Therefore:

Molarity = moles of solute / volume of solution

Molarity = 0.2666 / 0.0423

= 6.302 M


Hope that helps!

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