Question

What is the ph of the solution formed by mixing 40 ml of 0.1 m hcl with 10 mm 0.45 nios?

Answer 1

Molarity of HCL m1v1=40x0.1=4

Molarity of NaOH m2v2=10x0.45=4.5

Molarity of resulting solution=m2v2-m1v1/v1+v2

=4.5-4/10+40

=0.01

Ph(OH)=-log(OH)

=-log(0.01)

=2

Ph(+h)+p(OH)=14

P(+H)=12