Molarity is measured in
mols per L
Moles per liter is the unit used for measuring
molarity
The unit of measurement for molarity is
molar
One molar of sodium chloride contains
one mole of NaCl for every liter of solution
What is the molarity of a solution that contains 0.3 mols sugar in 2.5 liters of solution?
0.12 M
What is the molarity of 4 grams of sodium chloride in 3.8 liters of solution?
0.018 M
Describe a solvent.
part of solution present in largest amount
How does a solution become supersaturated?
dissolve more solute than you should be able to.
Describe a solute.
gets dissolved
What is the difference between concentration and saturation?
concentration is a fixed % and saturation refers to amount of solute dissolved
Unit for concentration. # moles/# Liters
Molarity
Solution where more solute can still be dissolved at the given temperature.
Unsaturated
Which of the following usually makes a substance dissolve faster in a solvent?
agitating the solution
What is the molarity of 200 mL of solution in which 2.0 moles of sodium bromide is dissolved?
10 M
How many moles of Na2SO4 is needed to make 2.5 L of 2.0 M solution?
5 moles
How many moles of solute are contained in 3.0 L of a 1.5 M solution?
4.5 moles
If the percent (mass/mass) for a solute is 4% and the mass of the solution is 200 g, what is the mass of solute in the solution?
8.0 g
40g of KCl dissolved in 100g of water at 60*C creates a solution that is
unsaturated
salt will dissolve in water more quickly if you stir it because...
Stirring increases the solubility of the solution
All of these affect the reaction rate except for
amount of solvent
The solubility of a gas in a liquid occurs faster if the liquid is
Cooled