What is the mass of a water bottle with a volume of 700mililiters?

I am pretty sure that 700mL of water will be 700 grams of water. The density of water is 1, so you use the equation density=mass/volume. You would plug everything in but mass (which you don't have). 1(700mL)= mass = 700 grams. 700 grams is around 1.5 lbs. The conversion of kg's to lb's is 1kg=2.2lbs.