Question

If the volume of solution is kept constant, but you slowly increase the amount of solute, what happens to the concentration of the solution?A.) not enough information is providedB.) it decreases (becomes less concentrated)C.) it remains the sameD.) it increases (becomes more concentrated)

Answer 1

We have the following formula for concentration:

M = n/V

where M is molarity (concentration), n is number of moles of the solute, or it can be the amount of the solute and V is the volume of the solution.

If you kept constant V and increases n, M will increase as well.

So the concentration will increase.

Answer: D.) it increases (becomes more concentrated)