2) At 298K, what are the molarities of pure water?

55.5 mols/L

Teri maa ki chud

To calculate the molarity of a solution, you need to know the moles of solute and the volume of the solution. In the case of pure water, there is no solute present, so we'll focus on the volume.

The molarity (M) of a solution is defined as the number of moles of solute divided by the volume of the solution in liters. Since there is no solute in pure water, the molarity can be calculated as zero.

However, it's important to note that the volume of the solution does not affect the molarity of pure water. In other words, regardless of the volume of pure water, its molarity will always be zero.