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Calculate the each initial CONCENTRATION for Pb(NO3)2 and KI before filling-out this chart. (Refer t Steps 1 and 2 of the procedure. Use the formula for Molarity to calculate the concentration of each salt after preparing the solution from the solid crystals dissolved in 100 mL of water. Do this for Lead (II) Nitrate and KI separately. Then use the dilution formula (starting with the initial concentration) for EACH beaker – each will have a the same total volume, but different volume of each solution added for each beaker. In short, FOR EACH BEAKER, multiple the concentration for Pb(NO3)2 with the concentration of KI.

Calculate the each initial CONCENTRATION for Pb(NO3)2 and KI before filling-out this chart. (Refer t Steps 1 and 2 of the procedure. Use the formula for Molarity to calculate the concentration of each salt after preparing the solution from the solid crystals dissolved in 100 mL of water. Do this for Lead (II) Nitrate and KI separately. Then use the dilution formula (starting with the initial concentration) for EACH beaker – each will have a the same total volume, but different volume of each solution added for each beaker. In short, FOR EACH BEAKER, multiple the concentration for Pb(NO3)2 with the concentration of KI.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Calculate the each initial CONCENTRATION for Pb(NO3)2 and KI before filling-out this chart. (Refer t Steps 1 and 2 of the procedure. Use the formula for Molarity to calculate the concentration of each salt after preparing the solution from the solid crystals dissolved in 100 mL of water. Do this for Lead (II) Nitrate and KI separately. Then use the dilution formula (starting with the initial concentration) for EACH beaker – each will have a the same total volume, but different volume of each solution added for each beaker. In short, FOR EACH BEAKER, multiple the concentration for Pb(NO3)2 with the concentration of KI.
Chart for Data and Results. Student needs to perform calculations to fill-out the needed values to complete the chart. | Beaker # mL DI water mL Pb(NO3)2 mL KI Total volume Final M of Pb(NO3)2 Final M of KI Qc → 1 32 4 4 2 28 6 6 3 24 8 8 4 20 10 10 5 16 12 12 6 12 14 14 7 10 16 16 Save #8 for last 8 26 7 7
Transcribed Image Text:Chart for Data and Results. Student needs to perform calculations to fill-out the needed values to complete the chart. | Beaker # mL DI water mL Pb(NO3)2 mL KI Total volume Final M of Pb(NO3)2 Final M of KI Qc → 1 32 4 4 2 28 6 6 3 24 8 8 4 20 10 10 5 16 12 12 6 12 14 14 7 10 16 16 Save #8 for last 8 26 7 7
Experiment #6: Ksp and Qc After printing/copying or studying this guide/procedure, watch the Video (4.55 minutes) by clicking on the link provided for Experiment #6 Module (under "Content"). You can watch the video however number of times you need to understand the experiment, within the allotted time period of availability. The video opens at 8 AM on the day/date that the experiment is schedules to be performed. You are given 48 hours to complete viewing the video. The demo for this experiment has inserted some "fun parts", please don't get annoyed and just ignore them. For this video the precipitation of lead (II) iodide is demonstrated. Although the amounts of compounds used are provided it will be the student's responsibility to calculate the actual concentration for each mixture made. The materials used in the experiment: Analytical or top-loader balance Eight 100-ml beakers Erlenmeyer or volumetric flasks Graduated cylinder Lead Nitrate crystals and Potassium Iodide crystals Summary of Procedure followed in the video: Take down notes and write down results as necessary. Try to note down your results and observations in logical manner. 1) Assume that 0.331 gram of each given salt is weighed (separately) 2) In separate flasks, each salt is dissolved in 100 mL of DI water (calculate the initial molarity of each solution assuming total volume of 100 mL). You will need a Periodic Table. Reminder: Round all values of atomic masses to proper whole numbers. 3) The 8 clean beakers are arranged and numbered from #1 to #8 in proper order. 4) DI water is added in different volumes, Pay attention to the video and refer to chart below (next page). 5) Lead Nitrate solution prepared in #2, is added to the beakers in varying volumes accordingly (Refer to video and chart) 6) Potassium Iodide solution prepared in #2, is added to the beakers in varying volumes accordingly (Refer to video and chart) 7) Beaker #8 is moved between Beakers #2 and #3. 8) Then, 26 mL of DI water is placed in Beaker #8, to which is added 7 mL of Lead nitrate and 7 mL of Potassium Iodide. 9) Note down your observations and perform the pertinent calculations. (see next page for suggested table for results) Online Lab for Ksp & QC LLLCruz, Page 1 of 2 10) Take the quiz for Experiment #6 which takes the place of a lab report. You only have two attempts to access the quiz. Assume the Ksp of the precipitate to be 1.4 x 10-8. Use this value to form conclusions. (Note: there is a typo in the value of the Ksp provided in the demo
Transcribed Image Text:Experiment #6: Ksp and Qc After printing/copying or studying this guide/procedure, watch the Video (4.55 minutes) by clicking on the link provided for Experiment #6 Module (under "Content"). You can watch the video however number of times you need to understand the experiment, within the allotted time period of availability. The video opens at 8 AM on the day/date that the experiment is schedules to be performed. You are given 48 hours to complete viewing the video. The demo for this experiment has inserted some "fun parts", please don't get annoyed and just ignore them. For this video the precipitation of lead (II) iodide is demonstrated. Although the amounts of compounds used are provided it will be the student's responsibility to calculate the actual concentration for each mixture made. The materials used in the experiment: Analytical or top-loader balance Eight 100-ml beakers Erlenmeyer or volumetric flasks Graduated cylinder Lead Nitrate crystals and Potassium Iodide crystals Summary of Procedure followed in the video: Take down notes and write down results as necessary. Try to note down your results and observations in logical manner. 1) Assume that 0.331 gram of each given salt is weighed (separately) 2) In separate flasks, each salt is dissolved in 100 mL of DI water (calculate the initial molarity of each solution assuming total volume of 100 mL). You will need a Periodic Table. Reminder: Round all values of atomic masses to proper whole numbers. 3) The 8 clean beakers are arranged and numbered from #1 to #8 in proper order. 4) DI water is added in different volumes, Pay attention to the video and refer to chart below (next page). 5) Lead Nitrate solution prepared in #2, is added to the beakers in varying volumes accordingly (Refer to video and chart) 6) Potassium Iodide solution prepared in #2, is added to the beakers in varying volumes accordingly (Refer to video and chart) 7) Beaker #8 is moved between Beakers #2 and #3. 8) Then, 26 mL of DI water is placed in Beaker #8, to which is added 7 mL of Lead nitrate and 7 mL of Potassium Iodide. 9) Note down your observations and perform the pertinent calculations. (see next page for suggested table for results) Online Lab for Ksp & QC LLLCruz, Page 1 of 2 10) Take the quiz for Experiment #6 which takes the place of a lab report. You only have two attempts to access the quiz. Assume the Ksp of the precipitate to be 1.4 x 10-8. Use this value to form conclusions. (Note: there is a typo in the value of the Ksp provided in the demo
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