Question

I need to find a concentration of NaOH from titration i have done in lab.

But i don't know how to..

Given: In a flask with 0.7572g of KHP with 50ml of H2O, i added 38.5ml of 0.1M NaOh solution.

From there, i need to find concentration of NaOH in the titrated solution.

thank you!

Answer 1

KHP(aq) + NaOH(aq) ---> KNaP(aq) + H2O(l)

molarity(M) of KHP = (W/M)*1000/V

                   = (0.7572/204.22)*(1000/50)

                   = 0.074 M

molarity(M) of NaOH = n/V

                    = 38.5*0.1/(38.5+50)

             = 0.0435 M