Determining volume of sodium citrate to make 7.5% solution

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Reference no: EM1312096

1) Determine volume of the sodium citrate in order to make up 7.5% solution.

A solution needs 250 ml of a 7.5% (w/v) solution of the tri sodium citrate. Only citrate you have accessible is dehydrate, C6H5O7Na3. 2H20 having a formula weight of 294.1. State how much you would have to make up this solution?

2) A citrate buffer should be formed up to a final concentration of 50mM. You required making up of the 2L. A citrate buffer should be made up to a final concentration of 50mM. You required making up 2L. You have to stock solutions from which in order to make this buffer; 0.1 M citric acid (C6H8O7) and 0.1 M Sodium citrate (C6H5O7Na3). You required adding twice as much of the acid form rather than the base form in order to obtain the required pH. Describe how will you make up this solution?

Reference no: EM1312096

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