Question

What is the total volume of water that you have if you calculated that it
weighs 180g?

Answer 1

For those people looking for the formula for converting volume to weight, and vice-versa, it looks like this (adapted from answers.com): Density = mass/volume (ρ=m/V). So V=m/ρ and has units (kilograms)/(kilograms per cubic meter)=cubic meter.