1. What is the molarity of a solution containing 20 grams of NaOH in 500 milliliters of solution?
a. 1 M
b. 2 M
c. 0.5 M
2. A student wants to prepare a 1.0 - liter solution of a specific molarity. The student determines that the mass of the solute needs to be 30 grams. What is the proper procedure to follow?
a. Add 30 g of solute to 970 mL of solvent to make 1.0 L of solution
b. Add 1000 g of solvent to 30 g of solute
c. add enough solvent to 30 g of solute to make 1 L of solution
3. A solution contains 35 grams of KNO3 dissolved in 100 grams of water at 40 degrees C. How much MORE KNO3 would have to be added to make it saturated solution?
a. 29 g
b. 12 g
c. 4 g
Any help would really really be appreciated.
a. 1 M
b. 2 M
c. 0.5 M
2. A student wants to prepare a 1.0 - liter solution of a specific molarity. The student determines that the mass of the solute needs to be 30 grams. What is the proper procedure to follow?
a. Add 30 g of solute to 970 mL of solvent to make 1.0 L of solution
b. Add 1000 g of solvent to 30 g of solute
c. add enough solvent to 30 g of solute to make 1 L of solution
3. A solution contains 35 grams of KNO3 dissolved in 100 grams of water at 40 degrees C. How much MORE KNO3 would have to be added to make it saturated solution?
a. 29 g
b. 12 g
c. 4 g
Any help would really really be appreciated.