Answer to Question #52256 in Physical Chemistry for vi

Question

Which of these mixtures is not a nearly ideal liquid mixture?
n-hexane and n-heptane
benzene and toluene
water and ethanol
carbon tetrachloride and silicon tetrachloride
9 The mole fraction of He in a gaseous solution prepared from 4.0 g of He, 6.5 g of Ar, and 10.0 g of Ne is __________.
0.6
1.5
0.2
0.11
10 Molality is defined as the __________.
moles solute / moles solvent
moles solute / Liters solution
moles solute / kg solution
moles solute / kg solvent
11 Which of the following is a pure substance made up of one type of atoms?
A mixture
An element
A compound
A solution
12 Ethanol dissolved in water would be an example of ___
a solution between two miscible liquids
a solution between a solid and liquid
a suspension between two liquids
ethanol and water do not form a solution