1. What is meant by the term Colligative Properties 2. Name and descried the fou
ID: 1067915 • Letter: 1
Question
1. What is meant by the term Colligative Properties 2. Name and descried the four Colligative Properties: oncentration Based on Mass (massvolume percent). N(m/v) grams of solute X100 mL of solution. 4. Calculate the composition of each of the following solutions in mass/volume a. o7oo g per Ioovo ml. b, 2 48 g of solute are dissolved in 50oo ml. of solution. %(m/m). grams of solute x grams of solution 5. Calculate the%m/m) of platinum in a gold ring that contains 40 ooggold and 59ooogofplatinum. 6. How many grams of solute are needed to prepare each of the following solutions: a. so go fo Boo%(m/m) NaCI. b. 35 xao g of 5.50%(m/m) Ammonium Chloride (NHC).Explanation / Answer
(1)
Colligative properties: The properties of solution which do not depend on the nature of solute but depends on the number of solute particles are known as colligative properties.
(2) (i) Relative lowering of vapour pressure
(ii) depression in freezing point
(iii) elevation in boiling point
(iv) osmotic pressure
(3) % m/v = (3.337 / 200.0) *100 = 1.668 %
(4) (a) %m/v = (0.700 / 100.0) * 100 = 0.700 %
(b) % m/v = (2.48 / 500.0) * 100 = 0.496 %
(5) % m/m =( 5.9000 / 45.900) * 100 = 12.85 %
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