1. What is the Molarity of a solution that has 25.00 g of NaOH in 500.00 ml of solution. 2. You're provided a 0.50 M solution of HCl. How many moles of HCl are present in 25 ml of this solution?

3. A lab tech prepared a solution of sodium carbonate, Na2CO3, with a molarity of 0.030 M. What mass of Na2CO3 will there be in 1.00 L of this solution?

4.The following equation shows the dissociation of barium hydroxide in aqueous solution:

Ba(OH)2 --> Ba2+ + 2OH-

Determine the number of moles of hydroxide ion in 250.00 ml of a 0.20 M solution of barium hydroxide.

5. If it takes 50.00 mL of 0.50 M Ca(OH)2 to neutralize 125.00 mL of sulfuric acid, what is the concentration of the acid?