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50ml of a solution, containing 1g each of Na 2 CO 3 , NaHCO 3 and NaOH was titrated with N HCl. What will be the titre readings if (a) only phenolphthalein is used as indicator? (b) only methyl orange is used as indicator from the very beginning? (c) methyl orange is added after the first end point with phenolphthaelein?

50ml of a solution, containing 1g each of Na 2 CO 3 , NaHCO 3  and NaOH was titrated with N HCl. What will be the titre readings if (a)   only phenolphthalein is used as indicator? (b)   only methyl orange is used as indicator from the very beginning? (c)   methyl orange is added after the first end point with phenolphthaelein?
 

Grade:12

1 Answers

Sakshi
askIITians Faculty 652 Points
8 years ago
hey student..
as a hint for this question, you just need to concentrate on the pH value at the equivalence point.
see the indicators that have been mentioned in this question are having different values or range of working in terms of pH. so try to concentrate on that part to move to the answer.

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