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MolSynapse / Question bank / Equivalent Concept and Titration / Acid-base titrations and double titration (NaOH, Na2CO3, NaHCO3)

JEE Main levelSingle correct optionDifficulty 2 of 3eq131

30.0 mL of 0.0600 M $Na X_{2} CO X_{3}$ is titrated with 0.150 M HCl to the methyl orange end point. The volume of HCl required is:

A $24.0 mL$
B $12.0 mL$
C $36.0 mL$
D $48.0 mL$

Answer: A

Methyl orange end point: n-factor of carbonate = 2. meq of carbonate = 0.0600

\times

2

\times

30.0 = 3.60. HCl volume = 3.60/0.150 = 24.0 mL.

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