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Catalyst

Catalyst. 1. Orange juice is strongly acidic. What pH could it have? 2. I have a solution that has a pH of 6. Is it acidic, basic or neutral ? 3. Calculate the pH of a 0.1 M solution of HCl. End. Lecture 5.4 – Titration Lab. What is the metric system?. I. SI System.

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Catalyst

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  1. Catalyst 1. Orange juice is strongly acidic. What pH could it have? 2. I have a solution that has a pH of 6. Is it acidic, basic or neutral? 3. Calculate the pH of a 0.1 M solution of HCl End

  2. Lecture 5.4 – Titration Lab

  3. What is the metric system?

  4. I. SI System • In science, we use the SI or metric system • Each unit in the SI system is a factor of 10 different another unit • Allows us to very easily interconvert

  5. II. Prefixes and the SI System • In the SI system, the prefix tells us the factor of 10 we are working with. • Choose the prefix represents the quantity most effectively

  6. How do we convert for the metric system?

  7. How to Remember the Order King Henry Died By Drinking Chocolate Milk

  8. Converting is like a Staircase

  9. Largest Unit at Top of Staircase Smallest Unit at Bottom of Staircase

  10. kilo- hecto- deca- Base deci- centi- milli-

  11. kilo- hecto- deca- 20 g Base deci- centi- Convert 20 g to kg milli-

  12. Convert 20 g to kg by moving the decimal 3 spots to the left 20 g 0 0 20. 20 g = 0.02 kg

  13. 105 kL kilo- hecto- deca- Base deci- centi- Convert 105 kL to mL milli-

  14. Convert 105 kL to mL by moving the decimal 6 spots to the right 105 kL 105 0 0 0 0 0 0 105 kL = 105,000,000 mL

  15. Table Talk • Determine the answers to the following questions with your tables • Complete the following conversions • 16 g = __________ cg (centigrams) • 40 km = ________ m • 13 dg (decigrams) = ________ Dg (decagrams)

  16. Pre – Lab Reading • Please read the entire lab handout • Annotate with any and all questions

  17. A Note on Reading Burets Burets are read to the hundredths place. You need to estimate the final digit

  18. Note on Burets • Cost of a buret = $130 EACH • I will hold you personally responsible for paying this cost if it breaks.

  19. Lab Work Time

  20. Titration Calculations

  21. Work Time • Work on rough drafts of discussion questions • Needs to be 3 paragraphs!

  22. Exit Slip 1. 0.0155 L sample of 0.215 M KOH solution was titrated into 0.0250 L of HCl at which point the equivalence point was reached. What is the concentration of the HCl?

  23. Learning Log Assessment • Rate yourself 1 – 4 on 5.6

  24. Closing Time • Unit 5Test next Mon/Tues • Rough draft of lab report due for Kool-Aid lab due

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