Solubility Curve, Molarity, Dilutions, Solution Stoich

What is the solubility of calcium chloride at 10⁰C?

• 35 grams

• 62 grams

• 20 grams

• 30 grams

How many grams of potassium dichromate are needed to make a saturated solution in 50 g of water at 80⁰C?

• 60 grams

• 40 grams

• 30 grams

• 20 grams

What is the minimum mass (in grams) of 40⁰C water would you need to dissolve 80 grams of KNO₃?

• 45 grams

• 120 grams

• 133 grams

• 117 grams

What is the molarity of a solution containing 7.65g NaOH in 850.0 mL of solution?

• 0.225 M

• 0.000225 M

• 0.00900 M

• 9.00 M

How many grams of KCl are there in 2.75 L of a 1.25 M solution?

• 256 grams

• 3.44 grams

• 33.9 grams

• 0.0461 grams

If you want to make 500.0 mL of a 1.25 M NaCl solution, how many mL of the 5.5 M stock solution will you need?

• 0.0088 mL

• 250.0 mL

• 113 mL

• 2200 mL

What is the molarity of a solution if you take 250.0 mL of a 12.0 M HCl solution and dilute to 1.25 L?

• 2400 M

• 0.0600 M

• 2.40 M

• 60 M

Using the balanced equation

14 HNO_3(aq) + 3 Cu₂O_(s) --> 6 Cu(NO₃)_2(aq) + 2 NO_(g) + 7H₂O(l)

What volume of NO gas is produced at STP if you use 75 mL of 3.4 M HNO₃?

• 1.1 L

• 816 L

• 5.7 L

• 0.82 L