If a 0.489 M solution of L-ascorbic acid is being prepared what mass of solid (in grams) must be added to make a 500 ml of solution?
2 Answers
43.063 gm
Explanation:
Since molecular weight of Ascorbic acid is 176.12 gm, so to prepare 1 litre of 1M solution , 176.12 gm Ascorbic Acid is required. But to prepare 0.489 M solution 176.12 x 0.489 = 86.122 gm of Ascorbic Acid is required for 1 litre of solution. And in same way to prepare
0.5 litres solution 86.122/2 = 43.061 gm Ascorbic Acid is required.
Explanation:
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So, we are going to need