1 / 12

Solution Concentration

Solution Concentration. Solution concentration. A way to indicate the amount of solute in a given amount of solvent. Qualitative: Concentrated: A lot of solute in solution Dilute: Very little solute present in solution. Quantitative. Molarity Mass percent Molality. Mass percent.

tyler-hill
Download Presentation

Solution Concentration

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Solution Concentration

  2. Solution concentration • A way to indicate the amount of solute in a given amount of solvent. • Qualitative: • Concentrated: • A lot of solute in solution • Dilute: • Very little solute present in solution.

  3. Quantitative • Molarity • Mass percent • Molality

  4. Mass percent • The percent by mass of solute in a solution. Mass % = Mass solute X 100 Mass solution

  5. What is the mass percent of a solution made by dissolving 14.5 g NaCl in 167.0 g H2O? Mass % = Mass solute X 100 Mass solution

  6. Molarity (M) Molarity is moles of solute per liter of solution. M = Moles solute Liters of solution 6 M HCl

  7. What is the molarity of a solution made by dissolving 14.5 g NaCl in enough H2O to make 134.0 mL of solution?? M = Moles solute Liters of solution

  8. To make a solution of a given Molarity: • Find moles of solute needed by multiplying the concentration and volume (in L) of the desired solution. • Change moles of solute to grams. • Dissolve ______g of solute (#2) in enough solvent to make the desired volume. Volumetric flask

  9. How would you make 120.0 mL of a 2.56 M Mg(OH)2 solution?

  10. Molality (m ) Molality is moles of solute per kilogram of solvent. m = Moles solute Kg of solvent 6 m C6H12O6

  11. What is the molality of a solution made by dissolving 45.5 g C12H22O11in 150.0 g of H2O? m = Moles solute Kg of solvent

  12. Solution Concentration: Mass Percent Mass % = Mass solute X 100 Mass solution Molarity M = Moles solute Liters of solution Molality m = Moles solute Kg of solvent

More Related