Concentration
Mr. Leaird makes a solution of kool aid with 42.0 grams of powder and 316 grams of water. What is the percent by mass of the solution.
11.7%
I want to make 36mL of 0.500M solution. I have a 5.0M stock solution. How much of the stock solution should I dilute?
3.6 mL
What does the Van't Hoff factor mean?
Number of particles that a compound dissociates into
23.0 L of O2 at 398K has 23.0 moles of gas. What is its pressure?
32.7atm
or
3310kPa
Given the following names of acids, what is the correct name for H3PO3
H2SO4 - Sulfuric Acid
H3PO4 - Phosphoric Acid
HNO3 - Nitric Acid
HCl - Hydrochloric Acid
HBr - Hydrobromic Acid
HNO2 - Nitrous Acid
HClO2 - Chlorous Acid
Phosphorus Acid
What is the percent by volume of a 78mL solution with 59mL of solute.
76%
What concentration would I get from diluting 63mL of 7.5M solution to 250mL
1.9M
What is the Van't Hoff Factor for Cr2(CO3)3
5
What is the Van't Hoff factor for Fe(PO4)3
4
What is the molarity of a 5.3L solution with 4.3 moles of NaCl.
0.81 M
or
0.81 mol/L
You need to make 10.0 L of 1.2 M KNO3. What molarity would the potassium nitrate solution need to be if you were to use only 2.5 L of it?
4.8M
Calculate the freezing point depression (ΔTf) for a 0.50 m solution of NaCl in water, given that Kf = 1.86 °C/m and NaCl fully dissociates.
-1.86 C
10.6g
Mr. Leaird adds 67.0g of K2SO4 to make a solution with a volume of 500.mL. What is the concentration in Molarity?
0.769 M
How many milliliters of 5.0 M copper(II) sulfate solution must be added to 160 mL of water to achieve a 0.30 M copper(II) sulfate solution?
Calculate the new boiling point for a solution of 200.0 g MgSO4 in 100.0g water, given that Kb = 0.512 °C/m.
101.7C
What number of moles of CH4 gas is present in a balloon with a volume of 2.5 L, pressure of 632 torr, and a temperature of 26 C
0.085 moles
Daily Double!!
What mass of CH4?
What is the molality of a solution with 88 mL of water and 23 grams of CO2
5.9 m
If you dilute 175 mL of a 1.6 M solution of LiCl to 1.0 L, determine the new concentration of the solution.
0.28M
Why does a 1.0 m solution of CaCl₂ produce a larger colligative effect than a 1.0 m solution of glucose, even though their concentrations are the same?
CaCl2 has a larger Van't Hoff Factor
__CH4 + __O2 --> __CO2 + __H2O
29.0 L of O2 reacts with methane (CH4). What mass of CO2 is released into the air.
57.0 g