Asked by Sarah
I am doing a lab on finding the molecular mass of a volatile liquid.
I first need to find the volume of water in the test tube. (V= m/d)
... but how do I find the density of the water in the first place to use it in the equation?
(I am not given the volume (it's what i'm trying to find)
-- all i have is the mass of the water
I'm so lost right now.
Thanks for the help!!!
I first need to find the volume of water in the test tube. (V= m/d)
... but how do I find the density of the water in the first place to use it in the equation?
(I am not given the volume (it's what i'm trying to find)
-- all i have is the mass of the water
I'm so lost right now.
Thanks for the help!!!
Answers
Answered by
Luis
you have to know that the density of water is 1g/mL
Answered by
DrBob222
The density of water of 1.00 g/mL is a relatively safe number to use. If you are running an extremely accurate assessment for the molecular mass, you read the temperature of the water with a thermometer and look up the density of water in a set of tables corresponding to that temperature. Here is a site that gives density versus temperature up to about 30 C or so.
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