Chapter 14: Mixtures And Solutions Question Preview (ID: 46878)
Mixtures And Solutions Basics.
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A solution with 30 g of solute in 100 mL of solvent is:
a) 30 vol%
b) 30 wt%
c) 30 M
d) none of these
A solution with 25 g of solute in 100 g of solution is:
a) 25 vol%
b) 25 wt%
c) 25 M
d) none of these
How much NaOH is there in 100 mL of a 1 M solution?
a) 1 mol
b) 1 g
c) 0.1 mol
d) 0.001 mol
what is the formula for making dilutions?
a) C1 x C2 = V1 x V2
b) C1 / C2 = V1 / V2
c) C1 x V2 = C2 x V1
d) C1 x V1 = C2 x V2
I should increase the solubility if...
a) I add solvent
b) I add solute
c) I increase the temperature
d) I decrease the temperature
when the molecules of solvent surround the molecules of solute
a) this is solubility
b) this is osmosis
c) this is molarity
d) this is solvation
50 g in 100 mL is...
a) vol%
b) wt%
c) molality
d) solubility
if I add sugar to a saturated solution:
a) the sugar dissolves
b) the sugar do not dissolve
c) the sugar reacts with water
d) the water starts to evaporate
these are colligative properties
a) boiling point elevation, freezing point depression
b) evaporation, melting
c) endothermic, exothermic
d) boiling point depression, freezing point elevation
osmosis is
a) a chemical reaction
b) the tendency of water to move into a more concentrated solution
c) the tendency of water to move into a less concentrated solution
d) the change of water from liquid to gas
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