Answer to Question #176421 in General Chemistry for anonymous

Question

Titration.

 

A solution of sodium carbonate (Na₂CO₃) of unknown concentration is titrated using a 0.1 M hydrochloric acid (HCl), using thymol blue as indicator. The reaction is as follows:

Na₂CO₃ + 2HCl → 2NaCl + CO₂ + H₂O

The titration is repeated several times (see results table). For each trial, 25 ml of Na₂CO₃ are used.

Trial number Volume of HCl used (ml)

1 30

2 25.5

3 25.7

4 25.6

 

What is the molarity of the Na₂CO₃ solution?

Answer 1

The Molarity of $Na_2CO_3$ Solution ;

0.013986 M