Question

If 8. 0 ml of water is added to 2. 0 ml of a 0. 500 m naoh solution, the concentration of naoh is changed to.

Answer 1

0.1mol/dm^3

Step-by-step explanation:

C1=0.5mol/dm^3

V1=2ml

V2=2ml+8ml=10ml

C2= (C1×V1)÷V2

=(0.5×2)÷10

=0.1mol/dm^3