Indicate the concentration of each ion or molecule present in the following solutions?

Question

a mixture of 53.5 mL of 0.10 M KClO3

K+ ____M
ClO3- ____M

a mixture of 53.5 mL of 0.10 M KClO3 and 32.5 mL of 0.22 M Na2SO4. Assume the volumes are additive

K+ ____M
ClO3- ____M

Answer 1

There is 1 K+ ion per KClO3 molecule, therefore the concentration is the same: 0.1 M.

Likewise, there is one Chlorate ion per potassion chlorate molecule, so the concentration is 0.1 M as well.