Question

25.7 ml of 0.487 M HCl and 15.4 ml of 0.765 ml NaOH are mixed.

Determine the mmol of HCl and NaOH in the two solutions that are being mixed.

mmol HCl

mmol NaOH

Which reactant is present in excess?

Is the solution acidic, basic or neutral?

Answer 1

$0.0257*0.487=0.0125 mol of HCl; 15.4*0.765=0.011781 mol of NaOH$

The acid is presented in excess, that s why the solution is acidic. Thank you for the question.