Molarity Calculations
This is the equation formula for molarity.
What is . . .
M = n/L
Molarity = number of moles per liters
This is the equation for dilutions.
What is . . .
M1V1 = M2V2
Draw a beaker that has a solvent reaching up to 1 L. Use a circle to represent 1 mole.
Make a model of a solution that has a concentration of 4 M. Show the proper amount of moles and liters.
What is . . .
Check each other.
Your picture should show 4 circles and 1 L of solution.
The points on a solubility curve represent when a solution is:
- Unsaturated
- Saturated
- Supersaturated
What is . . .
Saturated
April showers are said to bring these.
What are . . .
May flowers.
This is the molarity of 0.36 moles of HCl in 127 mL of solvent.
What is . . .
2.83 mol/L or 2.83 M
This would be the new molarity if you added 100 mL of H2O to 125 mL of 6M HCl.
(Pay attention to the total volume for V2)
What is . . .
3.33 M
Draw a beaker that has a solvent reaching up to 0.5 L. Use a circle to represent 1 mole.
Make a model of a solution that has a concentration of 4 M. Show the proper amount of moles and liters.
What is . . .
Check each other.
Your model should show 2 circles and a volume of 0.5 L (or 500 mL).
At 30 degrees Celsius, this is how many grams of KClO3 would be needed to create a saturated solution with 100 g of water.
What is . . .
10 grams
If you were born in April, this would be your birthstone.
What is . . .
a diamond
This is the molarity of a solution that is created when you dissolve 10 g of C6H12O6 (molar mass=180 g) into 50 mL of water.
What is . . .
1.11 M
This is the molarity of stock solution you would need to use with 100 mL of stock solution to end up with 300 mL of 0.5M sugar solution
What is . . .
1.5 M
This would be the difference between a 2 M solution of NaCl and a 4 M solution of NaCl.
What is . . .
There would be twice as many ions in the 4 M solution.
50 grams of Pb(NO3)2 at 20 degrees Celsius would create this type of solution in 100 g of water.
(Choices: unsaturated, saturated, or supersaturated)
What is . . .
unsaturated
Born on April 15, 1452, this is the person who painted the Mona Lisa.
Who is . . .
Leonardo da Vinci
This is how many grams of NaCl would be needed to make 250 mL of a 2 M solution.
What is . . .
29.225 g
This is how many mL of 1.25 M KI solution you started with in order to create 350 mL of 0.6 M solution.
What is . . .
168 mL
This would be the difference between a 2 M solution of NaCl and a 2 M solution of CaCl2.
What is . . .
There would be twice as many chloride ions in the CaCl2 solution.
Of the following substances, this chemical is the MOST soluble at 80 degrees Celsius in 100 g of water.
KCl, KClO3, K2Cr2O7, NaCl
What is . . .
K2Cr2O7
This is the day of April which has been celebrated as "Earth Day" in America since 1970.
What is . . .
April 22
This is how many mL of solvent would be needed to make a 0.75 M solution starting with 82.95 g of KI.
What is . . .
667 mL
This is how many mL of water you would need to add to dilute 225 mL of 2 M NaCl solution to 0.25 M.
What is . . .
1,575 mL
Starting with 3 molecules of NaNO3 show the ions that would form when it is placed in water to make a solution.
What is . . .
Check each other.
Your model should show 3 Na+1 ions and 3 NO3-1 ions.
A saturated solution of K2Cr2O7 in 100 grams of water at 90 degrees Celsius is cooled down to 50 degrees Celsius. This is how much solid would be expected to precipitate when the solution is cooled.
What is . . .
about 40 g
This event takes place at the Blue Oval at a nearby college campus every April.
What is . . .
the Drake Relays