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A calculate the purity of the sample containing

A 500 mg sample of each mixture was analyzed for its alkaline content using 0.1025 M HCl via double indicator method.

Mixture	1	2	3	4	5
V_0-Ph (ml)	4.27	0.01	5.12	6.37	5.63
V_0-Mr (ml)	10.18	6.19	10.24	6.38	9.04

(a) Calculate the purity of the sample containing NaHCO₃ only?

(b) What is the % wt of NaOH for the sample containing a mixture of NaOH-Na₂CO₃?

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Chemistry: A calculate the purity of the sample containing

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