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CHEMISTRY

JAMB 2011 - Question 11

Chemistry 2011 JAMB Past Questions - Question 11: from the diagram above, find the amount of solute deposited when 200cm³ of the solution is cooled from 55°C to 40°C.

Choose the most appropriate option for the gap

from the diagram above, find the amount of solute deposited when 200cm³ of the solution is cooled from 55°C to 40°C.

A: 0.10 mole

B: 0.20 mole

C: 0.01 mole

D: 0.02 mole

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Correct Answer

Explanation

NO of moles of the solute at 55 °C = 6 NO of moles of solute at 40°C = 5 NO of moles of solute that crystalized out when cooled from 55°C to 40°C = 6 - 5 = 1 mole / dm^3