Because size and weight can vary.
You can't, unless you know of which substance you have 2 litres (and the weight of said substance)
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the molecular weight of a substance expressed in grams
High resolution mass spectrometry weight. It is used to narrow down the molecular formula of an unknown molecule.
grams (for its mass).
Knowing the solubility of an unknown substance in water can help you calculate its molarity. It is however important to get its weight first.
It is the French term for "net weight", which is the weight of a substance, not including the weight of the container it's in; "gross weight" includes the weight of the substance and the container.
Unknown.
unknown
his weight is currently unknown to the public
You can't, unless you know of which substance you have 2 litres (and the weight of said substance)
You can find out the weight of an unknown object by using standard masses and a scale.
Weight
This depends on the substance. Re-ask the question with the substance or density of the substance. Gallons -> volume Lbs -> weight Weight = volume X density
weight
A weight gain calculator is useful in determining how many calories you need to intake on a daily basis in order to gain "good" weight and build muscle.
Weight and dimension of good