how much does a 100ml of water wiegh
The prefix in front of the unit tells you how to move the decimal. 1 milliliter = 0.001 liters because milli means thousandth. 1 thousandth of a liter = 0.001 liters. 0.1 liters is 100 times as much as 0.001 liters. Therefore 0.1 liters = 100 ml. Since each ml of water weights 1 g, 0.1 liters of water = 100 grams.
Best Answer: 100 grams. 1 gram = 1 ml. This is because gram was originally defined as the mass of 1 mL of water. This definition changed though in 1964 because the density of water changes with pressure and the units of pressure are dependent on the definition of mass.