1 / 21

Molarity Conversion Factors and Diabetes Prevention

Learn about molarity conversion factors and how to prepare a solution, as well as the importance of diabetes prevention.

tarevalo
Download Presentation

Molarity Conversion Factors and Diabetes Prevention

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. Chapter 8 Molarity Part 2

  2. Concentration of a solution Molarity(M) is the moles of solute per liter of solution. moles of solute Molarity(M) = Liters of solution

  3. Molarity Conversion Factors An NaOH solution has a molarity of 3.0M. • Write this molarity in the form of conversion factors (ratios).

  4. Molarity Conversion Factors 3.0 moles NaOHand L solution ____ L solution 3.0 moles NaOH

  5. How many grams of Na2SO4 are required to prepare 1000.0 mL of 1.0000 M Na2SO4 solution?

  6. How many grams of Na2SO4 are required to prepare 1000.0 mL of 1.0000 M Na2SO4 solution? 1000.0 mL

  7. How many grams of Na2SO4 are required to prepare 1000.0 mL of 1.0000 M Na2SO4 solution? 1000.0 mL 0.001 L mL

  8. How many grams of Na2SO4 are required to prepare 1000.0 mL of 1.0000 M Na2SO4 solution? 1000.0 mL 0.001 L 1.0000 mol Na2SO4 mL L

  9. How many grams of Na2SO4 are required to prepare 1000.0 mL of 1.0000 M Na2SO4 solution? 1000.0 mL 0.001 L 1.0000 mol Na2SO4 142.04 g mL L mol

  10. How many grams of Na2SO4 are required to prepare 1000.0 mL of 1.0000 M Na2SO4 solution? 1000.0 mL 0.001 L 1.0000 mol Na2SO4 142.04 g mL L mol = 142.04 g Na2SO4

  11. How to prepare 1000ml (1.000L) of a 1.0000M solution of Na2SO4. a a

  12. Diabetes is a serious medical issue facing our country at this time.

  13. 23.6 million people in the United States (7.8% of the total population) have diabetes. Of these, 5.7 million have undiagnosed diabetes. • In 2007, about 1.6 million new cases of diabetes were diagnosed in people aged 20 years or older. • If current trends continue, 1 in 3 Americans will develop diabetes sometime in their lifetime, and those with diabetes will lose, on average, 10–15 years of life. • Diabetes is the leading cause of new cases of blindness, kidney failure, and nontraumatic lower-extremity amputations among adults. • Diabetes was the sixth leading cause of death on U.S. death certificates in 2006. Overall, the risk for death among people with diabetes is about twice that of people without diabetes of similar age. • In 1999–2000, 7% of U.S. adolescents aged 12–19 years had impaired fasting glucose (prediabetes), putting them at increased risk of developing type 2 diabetes, heart disease, and stroke.

  14. Diabetes Is Preventable and Controllable • Recent studies show that lifestyle changes can prevent or delay the onset of type 2 diabetes among people at high risk. • For people with prediabetes, lifestyle changes, including a 5%–7% weight loss and at least 150 minutes of physical activity per week, can reduce the rate of onset of type 2 diabetes by 58%. • Disability and premature death are not inevitable consequences of diabetes. By working with their support network and health care providers, people with diabetes can prevent premature death and disability by controlling their blood glucose, blood pressure, and blood lipids and by receiving other preventive care in a timely manner.

  15. Blood sugar is a term referring to the amount of glucose (C6H12O6) present in the blood. A normal blood glucose level is about 0.083g in 100.0mL. What is the molarity of normal blood glucose? 0.0046M C6H12O6

  16. In a college chemistry class you are asked to prepare 100.0 mL solution of 0.250 M NiCl2 (gfm = 129.7g/mol).

  17. In a college chemistry class you are asked to prepare 100.0 mL solution of 0.250 M NiCl2 (gfm = 129.7g/mol). How do you prepare the solution?

  18. In a college chemistry class you are asked to prepare 100.0 mL solution of 0.250 M NiCl2 (gfm = 129.7g/mol). How do you prepare the solution. 3.24 grams of NiCl2

  19. Dissolve 3.24 grams of NiCl2 in water then dilute to a total volume of 100.0 mL.

  20. Information for Mole Quiz • How does a mole relate to particles and mass? (ie. One mole of H2O is 6.02 x 1023 H2O molecules and has a mass of 18.0 g). • Be able to use the factor-label method to do metric conversions and mole problems. • Know how to determine the number of atoms in a molecule. Be able to use this information in factor-label problems. • Be able to determine the number of grams/molecule. • Identify the diatomic gases.

  21. Homework • Molarity Worksheet. (Note that the answers to problem number 2 must be in sentence form).

More Related