PSU CHEM 110 - Lecture 29 Solutions 3 (5 pages)

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Lecture 29 Solutions 3



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Lecture 29 Solutions 3

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Lecture Notes


Pages:
5
School:
Pennsylvania State University
Course:
Chem 110 - Chemical Principles I
Chemical Principles I Documents

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Lecture 29 Solutions 3 Read HW BLB 4 1 4 5 13 4 BLB 4 3 15 37 61 72 73 13 39 47 Sup 4 1 3 13 8 11 Know electrolytes solutions Need help Get help TAs in CRC 211 Whitmore and SI hours on Chem 110 website my office hours Mon 12 30 2 Tues 10 30 12 in 324 Chem Bldg or 326 Chem Bonus deadline for BST 9 Solutions dilutions April 2 Check out the grade u lator http courses chem psu edu chem110 spring grade htm Exam 3 Monday April 6 6 30 pm Sign up for the conflict exam if needed Last day to sign up is Wed April 1 Late drop deadline Friday April 10 11 59 pm via elion Sheets Page 1 Lecture 29 Example Pure acetic acid CH3COOH known as glacial acetic acid is a liquid with a density of 1 049 g mL at 25 C Calculated the molarity of a solution of acetic acid made by dissolving 20 00 mL of glacial acetic acid in enough water to make 250 0 mL of solution Sheets Page 2 Lecture 29 Examples Which of the following aqueous solutions has the greatest total concentration of ions A 0 2 M NH4NO3 B 0 2 M Pb NO3 2 C 0 2 M Na2SO4 D 0 2 M AlPO4 E 0 2 M AlBr3 F 0 2 M CH3COOH acetic acid Which of the following species is NOT an electrolyte in aqueous solution A B C D E Sheets HCl Rb2SO4 CH3CH2OH KOH NaCl Page 3 Lecture 29 Examples Which one of the following solutions will have the greatest concentration of hydroxide ions A B C D E 0 100 M rubidium hydroxide 0 100 M magnesium hydroxide 0 100 M ammonia 0 100 M sodium hydroxide 0 100 M hydrochloric acid A solution is prepared by dissolving calcium chloride in water and diluting to 300 0 mL If this solution contains 66 ppm chloride ions the concentration of calcium ions is ppm A 33 ppm B 44 ppm C 66 ppm D 132 ppm Sheets Page 4 Lecture 29 Before next class Read HW BLB 13 1 13 3 BLB 13 7 15 21 23 33 Sup13 1 7 Know how solutions form solubility saturation factors affecting solubility Answers p 2 1 40 M p 3 top E bottom C p 4 top B bottom A Sheets Page 5 Lecture 29



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