Suppose you let 100 grams of ocean water sit out in the sun. Eventually you notice that all the water has vanished and you have 4.5 grams of salt remaining. How much water must have been in the solution
To find out the amount of water that must have been in the solution, we need to subtract the mass of the remaining salt from the initial mass of the ocean water.
Initial mass of ocean water = 100 grams
Mass of salt remaining = 4.5 grams
Therefore, the mass of water that must have been in the solution can be calculated as:
Water mass = Initial mass of ocean water - Mass of salt remaining
Water mass = 100 grams - 4.5 grams
Water mass = 95.5 grams
Hence, there must have been 95.5 grams of water in the solution.