1. A titration is a stoichiometrically controlled reaction involving an acid/bas

Question

1. A titration is a stoichiometrically controlled reaction involving an acid/base neutralization reaction. The net ionic reaction for an acid/base neutralization reaction is best described by: OH+(aq) + H2O(l) H3O+(aq) O H3O+(aq) + OH- (aq) + 2H2O(1) O HCl(aq) + NaOH(aq) + NaCl(aq) + H2O(1) 42* Tries 0/3 B of H+ and OH- are 2. At the endpoint of a titration the HEI* Tries 0/3 O indicator which will turn 3. To assist in viewing the endpoint of a titration we use an indicator. In this experiment we will use #*** Tries 0/3

Explanation / Answer

1. The balanced molecular equation is

HCl(aq) + NaOH (aq) ----> NaCl(aq)+ H2O(l)

The total ionic equation is :

H+(aq)+Cl-(aq)+Na+(aq)+OH-(aq) ----> Na+(aq)+Cl-(aq)+H2O(l)

The net ionic equation is H+(aq)+OH-(aq) ---> H2O(l)

2. At the end point of a titration the number of equivalence of H + ions and OH- ions are same.

3. In this acid base reaction phenolphthalein is used as a indicator and at the endpoint the solution turns from colourless to pink

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