Is 250 grams of water the same as 250 milileters of water?

Yes, 250 grams of water is the same as 250 milliliters of water because the density of water is approximately 1 gram per milliliter at standard temperature and pressure. This means that 1 gram of water occupies 1 milliliter of volume. Therefore, the mass in grams and the volume in milliliters are equal for water.