Lab 8 PostLab - Eq

Lab 8 PostLab - Eq - Lab 8 PostLab Eq and LeChatelier s Pr...

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11/2/13 Lab 8 PostLab - Eq. and LeChatelier's Principle www.webassign.net/web/Student/Assignment-Responses/view_key?dep=7011484 1/10 Current Score : 24.5 / 25 Due : Friday, November 1 2013 11:00 PM EDT 1. 1/1 points | Previous Answers NCSUGenChem102LabV1 8.POST.01. Green checks and red X's are not displayed for this question. Consider the equilibrium involving the acid-base indicator methyl orange. Indicators are used to provide a visual signal when a solution rapidly changes pH. HC 14 H 14 SO 3 (red) + H 2 O C 14 H 14 SO 3 (yellow) + H 3 O + (a) What color is the indicator in a basic solution? (Basic solutions are prepared by removing H 3 O + ion or by adding OH ion.) (b) Heating the exothermic reaction would cause it to turn red. red. Additional Materials Equilibrium and Le Ch�telier Lab 8 PostLab - Eq. and LeChatelier's Principle (Postlab) Sean Quigley CH 102, section 041 Instructor: Jonathan Boltersdorf TA Web Assign The due date for this assignment is past. Your work can be viewed below, but no changes can be made. Important! Before you view the answer key, decide whether or not you plan to request an extension. Your Instructor may not grant you an extension if you have viewed the answer key. Automatic extensions are not granted if you have viewed the answer key. Request Extension red yellow
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11/2/13 Lab 8 PostLab - Eq. and LeChatelier's Principle www.webassign.net/web/Student/Assignment-Responses/view_key?dep=7011484 2/10 2. 2/2 points | Previous Answers NCSUGenChem102LabV1 8.POST.02. Green checks and red X's are not displayed for this question. Consider the following equilibrium. Assume that the initial solution is green (mixture of blue and yellow) and predict the color that the solution would turn after each action. [Cu(H 2 O) 4 ] 2+ (blue) + 4 Br [CuBr 4 ] 2− (yellow) + 4 H 2 O (a) Adding AgNO 3 , precipitating AgBr, would cause it to turn blue. blue. (b) Cooling the exothermic reaction would cause it to turn yellow. yellow. Additional Materials Equilibrium and Le Ch�telier
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11/2/13 Lab 8 PostLab - Eq. and LeChatelier's Principle www.webassign.net/web/Student/Assignment-Responses/view_key?dep=7011484 3/10 3. 2/2 points | Previous Answers NCSUGenChem102LabV1 8.POST.03.
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