Chemical calculations

. An aqueous solution contains a mixture of NaOH anf Na₂CO). A 20.0 cm³ of this solution was titrated with a 0.10 M solution of HCl using phenolphthalein as the indicator. The volume of HCI consumed at the end point was 16.0 cm³. Then few drops of Methyl orange were added to the same solution and the titration was continued. The volume of HCI used at the second end point was 22.0 cm³ Calculate the concentrations of NaOH and Na₂CO) in the solution

Reply 1

bl0bf1sh

15

Original post by Wniroshap

. An aqueous solution contains a mixture of NaOH anf Na₂CO). A 20.0 cm³ of this solution was titrated with a 0.10 M solution of HCl using phenolphthalein as the indicator. The volume of HCI consumed at the end point was 16.0 cm³. Then few drops of Methyl orange were added to the same solution and the titration was continued. The volume of HCI used at the second end point was 22.0 cm³ Calculate the concentrations of NaOH and Na₂CO) in the solution

What are you thinking so far? What are the pH ranges over which these indicators change colour?

Reply 2

Nitrotoluene

8

Original post by Wniroshap

. An aqueous solution contains a mixture of NaOH anf Na₂CO). A 20.0 cm³ of this solution was titrated with a 0.10 M solution of HCl using phenolphthalein as the indicator. The volume of HCI consumed at the end point was 16.0 cm³. Then few drops of Methyl orange were added to the same solution and the titration was continued. The volume of HCI used at the second end point was 22.0 cm³ Calculate the concentrations of NaOH and Na₂CO) in the solution

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Chemical calculations

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