Ascorbic acid (vitamin C, C6H8O6, 176.1256 g/mol ) is a water soluble vitamin. A solution contains 49.5 g of ascorbic acid dissolved in 210. g water. (a) The mass percentage (%m/m), of the ascorbic acid in this solution is %m/m (give your answer to 3 SF) (b) The molality of this solution would be mol/kg (c) Assuming the van't Hoff factor for this solution is i = 1.05 The freezing point of this solution would be oC. (give your answer to 2 decimal places)
Ascorbic acid (vitamin C, C6H8O6, 176.1256 g/mol ) is a water soluble vitamin.
A solution contains 49.5 g of ascorbic acid dissolved in 210. g water.
(a) The mass percentage (%m/m), of the ascorbic acid in this solution is %m/m (give your answer to 3 SF)
(b) The molality of this solution would be mol/kg
(c) Assuming the van't Hoff factor for this solution is i = 1.05
The freezing point of this solution would be oC. (give your answer to 2 decimal places)
(d) The solution has a density of 1.022 g/mℓ at 25oC.
The molarity of this solution is M (give your answer to 2 decimal places)
(e) Ascorbic acid is a weak monoprotic acid, determine the pH of this solution. Ka = 7.90 x 10-5
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