It depends on the temperature and pressure but it is very slightly under 1 gram per cubic centimetre.
Weight of Water is 63 PCF Actually, the unit weight of water is 62.4 pcf.
Weight(mass) is measured in kilograms.
Molecular weight (unit) of salt dissolved in liter (unit) volume of water.
The weight of 2 pounds of water is just that--2 pounds. Pound is a unit of weight (or, more formally, force).
Newtons is a unit of weight or force. The mass unit would be kilograms. 1 liter of water has a mass of 1 kilogram. On Earth, this would have a weight of 9.8 Newtons.
The weight of any material depends on the unit weight of the material. Every material has a unit weight and is in effect the density of it. The calculation is then to work out the volume of material (l x b x h) then multiply it by the unit weight. As an example the unit weight of water is 1000kg/m3. This means 1m3 of water is equal to 1 tonne. Concretes unit weight is 2400kg/m3 so Volume(m3) x 2.4 is equal to weight in tonnes. As a guess I would say topsoil has a unit weight of around 1.8 (just a guess) therefore 1 litre would be 0.001m3 x 1.8 = 0.0018 tonnes = 1.8kg. Hope this helps!
Specific weight is the weight of the material per unit volume. Water has the specific weight of 62.43 pounds per cubic foot or 9.807 Newtons per cubic meter.
kilograms
A "gram" is a unit of weight, not a unit of volume or a container. You probably want to know how many grams of water are equivalent to one cup of water, in which case the answer is (where 1 cup contains 8 ounces): 8 * 28.25 (grams/ounce) = 226.8 grams --- Additional notes: A "cup" can be considered either a unit of volume or a unit of weight, where in the case of water, there is a direct fixed relationship between the volume and the weight. There is also a direct fixed relationship between a gram of weight and a milliliter volume of water, where 1 ml of water (at 4 degrees C) weighs 1 gram.
SI unit of weight is Kg
the unit for weight is kg !
Only in the metric system. The metric system bases its unit of weight, the gram, on the weight of one millilitre of water. Therefore one litre of water (or other liquid which is mostly water) weighs one kilogram (1000 grams)