Molarity Calculations
What is the molarity of a solution that was prepared by dissolving 14.2 g of NaNO3(molar mass = 85.0 g/mol) in enough water to make 350 mL of solution?
0.477 M
What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 kg of water?
2.0 m
5.0 grams of sugar are dissolved in 150 g of water What is the mass percent of sugar in the solution?
3.2%
What is the molarity of a solution that was prepared by dissolving 82.0 g of CaCl2(molar mass = 111.1 g/mol) in enough water to make 812 mL of solution?
0.909 M
What is the molality of a solution in which 25 g of NaCl (58.44 g/mol) is dissolved in 2.0 kg of water?
0.22 m
How many grams of NaBr are needed to make 50 g of a 5.0% solution?
2.5 g
What is the molarity of a solution that contains 5.5 g of HCl (molar mass = 36.5 g/mol) dissolved in enough water to make 250 mL of solution?
0.60 M
How many grams of I2(solute) should be added to 750 g of CCl4(solvent) to prepare a 0.020 m solution?
3.8 g
How many grams of LiOH are needed to make 25 g of a 4.0 % solution?
1.0 g
How many grams of NaBr (molar mass = 102.9 g/mol) would be needed to prepare 700 ml of 0.230 M NaBr solution?
16.6 g
How much water (solvent) should be added to 5.00 g of KCl (74.54 g/mol) to prepare a 0.500 m solution?
0.135 m
An 800 g solution of Kool-Aid contains 780 g of water. What is the mass percent of solute in this solution?
2.5%
How many moles of Na2CO3 are there in 10.0 L of 2.00 M solution?
20.0 mol
A sulfuric acid solution containing 571.4 g of H2SO4 per liter of solution has a density of 1.329 g/cm3. Calculate the molality of H2SO4 in this solution
7.690 m
What is the mass percent of a solution created by adding 10 g of olive oil to 90 g of vegetable oil?
10%