Question

What is the molarity of NO−3 in 0.160M KNO3?

Answer 1

In reality there is np conservation of concentration but in this case, since the volume is constant therefore we can say that we can balance concentrations.

Since we have 1 mol og NO3 per mole of KNO3, therefore we can say that for every 0.160M of KNO3 we can also have 0.160M of NO3.