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84. Solving a chemistry problem
Uploaded:
22.10.2022
Content: 1.rar 25,65 kB
Content: 1.rar 25,65 kB
Product description
1. Calculate the volume of a 0.5 n solution of hydrochloric acid (K = 1.01), which will be used for titration of a weighed portion of the powder of crushed tablets weighing 0.2498. 1 ml of 0.5 N hydrochloric acid corresponds to 72.05 mg of sodium benzoate. The average weight of tablets is 0.118g. the content of sodium benzoate should be 0.055-0.062 g based on the average weight of the tablet
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