The volume of 0.1 M NaOH will be required to neutralise 100 ml of 0.1 ml H_(3)PO_(4) using methyl red indicator to change the colour from pink (acidic medium) to yellow (basic medium) is 10^(x). What is x?

The volume of 0.1 M NaOH will be required to neutralise 100 ml of 0.1

1.	The volume of 0.1 M NaOH will be required to neutralise 100 ml of 0.1 ml H_(3)PO_(4) using methyl red indicator to change the colour from pink (acidic medium) to yellow (basic medium) is 10^(x). What is x?
Answer» Solution :Methyl red indicates FIRST step IONISATION of `H_(3)PO_(4)` `H_(3)PO_(4)iffH^(+)+H_(2)PO_(4)^(-)` `N_(1)V_(1)=N_(2)V_(2)implies0.1xx1xxV_(1)=0.1xx1xx100` `V_(1)=100ml=10^(2)ml`