Solubility
Concentrations
Acids & Bases
Gas Behaviors
Mixed Review
100
80 grams of KNO3 is dissolved in 100 grams of water at 40oC. Saturated, Unsaturated, or Supersaturated?
Supersaturated
100
What is the molarity of a solution that contains 2.5 moles of solute dissolved in 500 mL of water?
5 M
100
Solution A pH = 5.3; Solution B pH = 12.2; Solution C pH = 3.0.
Which solution is most alkaline?
Solution B
100
Select the correct words:
If gas is removed from a container, the pressure will [increase/decrease] because there will be [more/less] collisions. This is a [direct/indirect] relationship.
decrease; less; direct
100
Solution A pH = 5.3; Solution B pH = 12.2; Solution C pH = 3.0.
Which solution has the highest concentration of hydrogen ions?
Solution C
200
How do you know if a solution is unsaturated?
It is under the line on a solubility table (OR)
The solute dissolves when adding more.
200
300 mL of a 3.0 M solution is diluted to a volume of 1,000 mL. What is the new concentration?
0.9 M
200
The concentration of H+ ions in a solution is 4.8x10-4 M. What is the solution's pH? Round to two decimal places.
pH = 3.32
200
a) if the volume of a gas increase, the temperature will _____.
b) if the temperature of a gas decreases, the pressure will ____.
c) if the pressure of a gas decreases, the volume will ____.
a) increase
b) decrease
c) increase
200
How does pressure AND temperature affect the solubility of a SOLID solute?
Increased temperature increases solubility
Pressure has no effect
300
How many grams of NaNO3 can be dissolved in 300 grams of water at 10oC?
240 grams
300
30 grams of CaCl2 is dissolved in 0.75 liters of water. What is the molarity? (Round to TWO decimal places).
0.36 M
300
Fill in the blanks with "greater" or "less" for an ACIDIC solution:
The pH is ___ than 7. The pOH is ___ than 7. The concentration of hydrogen ions is ___ than hydroxide ions.
less; greater; greater
300
If a container holding a gas is allowed to double in size, what will happen to the pressure if the temperature is held constant?
Pressure will be cut in half.
300
What is the pOH of a solution that contains 1.5x10-6 M of H+ ions? Round to two decimal places.
pOH = 8.12
400
How does pressure AND temperature affect the solubility of a GAS solute?
Increased pressure increases solubility
Decreased temperature increases solubility
400
How much water would need to be ADDED to dilute 50 mL of a 6.0 M solution to a concentration of 1.5 M?
150 mL
400
Calculate the concentration of hydrogen ions [H+] in a solution with a pOH of 3.2. Write answer in scientific notation, rounded to two decimal places.
[H+] = 1.58 x 10-11 M
400
1 atm = 101.3 kPa = 760 mmHg = 14.7 psi
Convert 35.0 psi to kPa. Round to the nearest whole number.
241 kPa
400
How many grams of solute are in 1.5 L of a 2.5 M HBr solution? Round your answer to two decimal places.
303.41 grams
500
A saturated solution of KClO3 is made at 50oC. How many more grams of solute can be dissolved if the solution is heated to 90oC?
30 grams
500
How many mL of a 1.5 M solution is needed to have 50 grams of MgBr2 ?
181 mL
500
The concentration of H+ ions in a solution is 5.0x10-9 M. Calculation the concentration of OH- ions in the solution. Write answer in scientific notation. ALSO, determine if the solution is acidic or basic.
[OH-] = 2.0 x 10-6 M
Basic solution
500
A gas has a volume of 200 mL and a pressure of 5.0 atm. What will be the new pressure if the volume of the gas increases to 600 mL?
New Pressure = 1.67 atm
500
1200 mL of water is added to 300 mL of a HCl solution. The new concentration is 0.75 M. What was the original concentration of the solution before it was diluted?
3.75 M