Does sugar dissolve in lemonade?
Sugar is easily dissolved in lemonade.
Most people would conclude that water can dissolve lemonade powder because of one or more of these assumptions: It is designed and formulated to dissolve in water. The instructions for mixing it say that it will dissolve in water. It is mostly sugar and sugar, being fairly polar dissolves in water. Lemonade is expected to be mostly a solution. You have witnessed the same brand of lemonade mix dissolve in water before.
Powdered sugar is mostly very finly ground sugar and can be used as a sweetener like granulated sugar, but it usually contains some corn starch or wheat flour that wouldn't be desirable in a beverage. Also, due to it's fineness and general clumpiness, it may be more difficult to get it to dissolve in some cases.