# A student mixes 50g of sugar with 300g of water and 5g of lemon. What is the mass of solution?

Dec 29, 2016

Why $355 \cdot g$.
Here $355 \cdot g$ of non-volatile material were used; and necessarily $355 \cdot g$ of mass remain.
In another experiment a punter used the same quantities of material but used $300 \cdot g$ carbonated water, i.e. fizzy water. After a few hours, the experimenter noticed a slight DROP in mass. How is this possible?