Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: AngelShare on August 18, 2005, 01:33:10 AM
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I have a tutor for this but as we went over a lot, I forgot this part of the lesson.
Alcohol has a specfic gravity of 0.78 gcm3. What volume would 83g occupy?
The only thing I can recall is him saying about conversions...g/cm3 * cm3/g or something like that...
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Should say 0.78 g/cm3
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Yeah, I missed the "/", sorry. :D ;)
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A proper conversion factor can be found here: http://www.chemicalforums.com/index.php?page=miscellaneous#Conversion%20Factors
Whether you will be competent enough to use it, is the question. :P
Let us know if you need further help.
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Well, Miss. Incompetent is back and her face looks something like this: ???
:D I'm terrible with this, it's literally my weakest subject. I look at the information and I get really panicked, it's like I need Hooked on Phonics but for Chemistry. :P
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You've got all the info you need in the question.
You don't need any conversion factors, don't confuse people Mitch.
The density or specific gravity of the alcohol is 0.78g/cm3 or 0.78g/ml
1ml weighs 0.78g
or
1g is (1/0.78)ml
You want to know the volume of 83g
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Alcohol has a specfic gravity of 0.78 gcm3. What volume would 83g occupy?
Shouldn't specific gravity be unitless? It is after-all a ratio of 2 densities.
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Yes it is dimensionless because it is relative to water .
so a specific gravity is really 0.78. when you say 0.78 g/ml it is relative to water at 1 g/ml
so (.78 g/ml)/(1 g/ml) = 0.78
go to wikipedia.org for more info, search "specific gravity"