The compound on the left is more soluble in water.
Work Step by Step
Both the compounds have oxygen, thus both of them are polar molecules. The compound on the right has more carbons, which makes it more non-polar. However, the compound on the left has fewer carbons, which make it more polar than the one on the right. As "like dissolves in right," the compound on the left will be more soluble in water than the one on the right.