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Calculate the purity of the sample

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Reference no: EM131107250

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

V0-Ph (ml)

4.27

0.01

5.12

6.37

5.63

V0-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?

Reference no: EM131107250

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