- Give the formula for molarity.
- A molarity problem has given you the mass of the solute, in grams. What must be done to solve the problem?
A molarity problem gives you the volume of the solution in mL. What must be done to solve the problem?
- Terms and Definitions:
- What is a solute?
- What is a solvent?
- What type of mixture is a solution, heterogeneous or homogeneous? Explain.
- You might recall the scene in the movie “Men in Black” where the alien/farmer asks his wife for sugar. Using the appropriate terms (solute, solvent, solution), describe how she gave him want he requested.
- 37.5 g of NaOH is dissolved in enough water to create 500. mL of solution. What is the molarity of the solution?
- How many grams of LiCl are needed to create 1.50 L of 2.50 M LiCl?
- What is the volume of solution (in mL) that will contain 0.50 mole of 3.0 M NaOH?
- How many grams of MgF2 are needed to prepare 250 mL of 1.50 M MgF2?
- How many moles of KNO3 are needed to create 500. mL of 6.0 M KNO3?
- What volume (in Liters) of 4.50 M HCl will contain 0.25 moles of HCl?
- A bottle is labeled “3.0 M HCl”. Another bottle is labeled “0.1 M HCl”. Which bottle contains the more concentrated acid? Tell how you would explain what the labels mean to someone who hadn’t taken chemistry.