How does doubling the volume of solvent affect the concentration of the solution?

Molarity is halved when the volume of solvent is doubled.

Explanation:

Using the dilution equation (volume 1) (molarity 1) = (volume 2) (molarity 2), we can demonstrate the effects of doubling volume.

Suppose the starting volume is 1 L and the starting molarity is 1 M, and doubling the volume would make the final volume 2 L.

Plugging these numbers into the equation, we can figure out the final molarity.

(1 L) (1 M) = (2 L) (X M)

X M = (1 L x 1 M) / (2 L)

X M = 1/2 M

This shows that the molarity is halved when the volume of solvent is doubled.