stoich question

[cipherpol]

A solution contains a mixture of two salts, potassium nitrate and potassium sulfate. If the concentration of potassium ions is 1.4 M and the concentration of nitrate ions is 0.6 M, what is the concentration of the sulfate ions?

Thanks.

[Edmund]

Since Concentration is proportional to number of moles, we can work in terms of concentration.

Potassium nitrate:

Therefore ratio of nitrate to potassium is 1:1, and there are 0.6M of nitrate ions (given), and we can deduce that there are 0.6M of potassium ions.

Potassium sulfate:

There will be 1.4M - 0.6M = 0.8M of potassium ions

Therefore there will be 0.8M/2 = 0.4M of sulfate ions

(Someone please confirm if this is right)

[cipherpol]

Yep, it's correct, thanks Edmund.