Homework Help: chemistry

Posted by Anonymous on Sunday, February 10, 2008 at 10:22pm.

Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol,
a density of 0.660 g/mL, and a boiling point of 69C.

Pentanol is an alcohol (a hydrocarbon with a "OH" group attached to one of its carbons) with a molecular weight of
88.15 g/mol, a density of 0.814 g/mL, and a boiling point of 137C.

Calculate the volumes if 3.00 moles of each chemical is present.
Hexane: mL

Pentanol: mL

chemistry - DrBob222, Sunday, February 10, 2008 at 10:35pm
mass = volume x density
Rearrange to
volume = mass/density

3 mols x molar mass of each = grams of each.
Post your work if you get stuck.

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