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EXPERIMENT 8 Post-Lab Questions Section Name: 1 Consider the following system at equilibrium in a closed...
2. 2Cr02 (aq, yellow)+ 2H,0-(aq) Cr20 (aq, orange) +3H20(D (AH = -ve) a. What would you...
2. 2Cr02 (aq, yellow)+ 2H,0-(aq) Cr20 (aq, orange) +3H20(D (AH = -ve) a. What would you observe if you add concentrated acid to the system? Describe the appearance and how it changes. Briefly explain your answer in terms of Le Châtelier's Principle. b. What would you observe if you add some K2Cr20, crystals to the system? Describe the appearance and how it changes. Briefly explain your answer in terms of Le Châtelier's Principle. C What would you observe if you...
EXPERIMENT 8 Post-Lab Questions Name: Leiseu Scalish Section: 1. Consider the following system at equilibrium in...
EXPERIMENT 8 Post-Lab Questions Name: Leiseu Scalish Section: 1. Consider the following system at equilibrium in a closed container (pressure at 1 atm): NaOH(s) + CO2(g) + NaHCO3(s) AHºrn < 0 Concentration of CO2 gas present at equilibrium can be decreased by True or False (T or F) adding N2 gas to double the pressure adding more NaOH increasing the volume of the container lowering the temperature (10
Part Il (Answer briefly) 3 questions (30 points) 1.(10pt) Write the chemical formula and color as...
Part Il (Answer briefly) 3 questions (30 points) 1.(10pt) Write the chemical formula and color as follows: Nickel sulfide Chromium hydroxide Bismuth hydroxide Cadmium sulfide Silver chloride 2.(10pt) Write and balance the chemical equations for the following reactions oFe (aq)+ OH (aq) aCd (aq) +S(aq) a AgCI(s)+NH,(aq) 4Cu (a)+NH,(aq 3. (10pt) In the following reaction at equilibrium: (aq) 2CrO, (aq, yellow) + 2 H, Cr,0,2 (aq, orange) +3 H,o 0) A. What color change do you observe when you add...
Please explain as thoroughly as possible. Thank you Name Laboratory Instructor Desk REPORT SHEET Chemical Equilibrium:...
Please explain as thoroughly as possible. Thank
you
Name Laboratory Instructor Desk REPORT SHEET Chemical Equilibrium: Le Châtelier's Principle 1. Changes in Reactant or Product Concentrations Copper and Nickellons Colors: i caso,(ag) Blue light 4. Nicl₂(ag) Green light [Cu(NH3).1" (aq) Dark Blue clear 5. [Ni(NH)." (aq) Violet light clear 3. After HCl addition blue light After HCI addition Green Icht Clear Explain the effects of NH3(aq) and HCl(aq) on the Cuso, solution in terms of Le Chatelier's principle. and 7....
Equilibrium - Investigation of Le Chatelier's Principle Pre-Lab Questions 1) Each of the components of the...
Equilibrium - Investigation of Le Chatelier's Principle Pre-Lab Questions 1) Each of the components of the HC2H2O2 equilibrium system in Part A are clear and colorless. a) Briefly explain how you will determine the effects of the additions you make to this equilibrium b) What will you expect to observe if the H2O concentration is relatively high? c) What will you expect to observe if the H2O* concentration is relatively low? 2) List 3 ways we can disturb a chemical...
TA Laboratory Date - Section Name Experiment 12-Post-lab Questions 1. Consider the balanced redox reaction taking...
TA Laboratory Date - Section Name Experiment 12-Post-lab Questions 1. Consider the balanced redox reaction taking place in an acidic aqueous solution vo," (aq) +SO,'(aq) Vo(aq) +0,- (aq) The unbalanced oxidative half-reaction for this redox reaction is: VO, (aq) → VO" (ag) Because the reaction takes place in aqueous solution, the reaction can be balanced by adding water. 2. Add water to reaction (la) to balance the oxygen. This will give reaction (1b). (1b) Because the reaction takes place in...
Part I Color changes of Methyl Violet. We will study the following reaction: HMV (aq) +...
Part I Color changes of Methyl Violet. We will study the following reaction: HMV (aq) + MV (aq) + H* (aq) yellow greenish-blue violet Step 1. Place about 4 mL of distilled water in a regular test tube. Add two drops of methyl violet indicator. Record the color of the solution. Violet Next, add drop by drop, add 6M HCI. This forces equilibrium to be shifted to the left or right-circle the right answer). Adding HCl changes color from to...
Le Chatelier's Principle 3. For Part Ill, use Le Châteller's Principle to explain the colour changes...
Le Chatelier's Principle 3. For Part Ill, use Le Châteller's Principle to explain the colour changes observed in test tubes 2 and 3 upon the addition of HC and A . Also, explain the observed colour changes in the test tubes placed in hot and cold water. (4 marks) Test Tube 2: Test Tube 3: Hot Water bath: Cold Water bath: Extension: 1. NaCl(aq) + HCl(aq) = NaCl(aq) + H2O + Cl2(g) When the above system is cooled, gas bubbles...
Question 5 (1 point) Consider the following reaction at equilibrium: 2NH3(g) N2(g) + 3H2(g) Le Châtelier's...
Question 5 (1 point) Consider the following reaction at equilibrium: 2NH3(g) N2(g) + 3H2(g) Le Châtelier's principle predicts that the moles of H2 in the reaction container will increase with O a decrease in the total pressure (T constant) some removal of NH3 from the reaction vessel (V and T constant) an increase in total pressure by the addition of helium gas (V and T constant) a decrease in the total volume of the reaction vessel (T constant) addition of...
2. Consider the following equilibrium: Mg(OH)2(8) 5 Mg?'(aq) + 2OH(aq) redict the shift in system at equilibrium if...
2. Consider the following equilibrium: Mg(OH)2(8) 5 Mg?'(aq) + 2OH(aq) redict the shift in system at equilibrium if a solution of HCI is added dropwise to the system at equilibrium. Briefly explain. 0. Predict the change in equilibrium if a solution of NaOH is added dropwise to the system at equilibrium. Briefly explain. c. Predict the change in equilibrium if the system at equilibrium is diluted by distilled water. Briefly explain
2. 2Cr02 (aq, yellow)+ 2H,0-(aq) Cr20 (aq, orange) +3H20(D (AH = -ve) a. What would you observe if you add concentrated acid to the system? Describe the appearance and how it changes. Briefly explain your answer in terms of Le Châtelier's Principle. b. What would you observe if you add some K2Cr20, crystals to the system? Describe the appearance and how it changes. Briefly explain your answer in terms of Le Châtelier's Principle. C What would you observe if you...
EXPERIMENT 8 Post-Lab Questions Name: Leiseu Scalish Section: 1. Consider the following system at equilibrium in a closed container (pressure at 1 atm): NaOH(s) + CO2(g) + NaHCO3(s) AHºrn < 0 Concentration of CO2 gas present at equilibrium can be decreased by True or False (T or F) adding N2 gas to double the pressure adding more NaOH increasing the volume of the container lowering the temperature (10
Part Il (Answer briefly) 3 questions (30 points) 1.(10pt) Write the chemical formula and color as follows: Nickel sulfide Chromium hydroxide Bismuth hydroxide Cadmium sulfide Silver chloride 2.(10pt) Write and balance the chemical equations for the following reactions oFe (aq)+ OH (aq) aCd (aq) +S(aq) a AgCI(s)+NH,(aq) 4Cu (a)+NH,(aq 3. (10pt) In the following reaction at equilibrium: (aq) 2CrO, (aq, yellow) + 2 H, Cr,0,2 (aq, orange) +3 H,o 0) A. What color change do you observe when you add...
Please explain as thoroughly as possible. Thank
you
Name Laboratory Instructor Desk REPORT SHEET Chemical Equilibrium: Le Châtelier's Principle 1. Changes in Reactant or Product Concentrations Copper and Nickellons Colors: i caso,(ag) Blue light 4. Nicl₂(ag) Green light [Cu(NH3).1" (aq) Dark Blue clear 5. [Ni(NH)." (aq) Violet light clear 3. After HCl addition blue light After HCI addition Green Icht Clear Explain the effects of NH3(aq) and HCl(aq) on the Cuso, solution in terms of Le Chatelier's principle. and 7....
Equilibrium - Investigation of Le Chatelier's Principle Pre-Lab Questions 1) Each of the components of the HC2H2O2 equilibrium system in Part A are clear and colorless. a) Briefly explain how you will determine the effects of the additions you make to this equilibrium b) What will you expect to observe if the H2O concentration is relatively high? c) What will you expect to observe if the H2O* concentration is relatively low? 2) List 3 ways we can disturb a chemical...
TA Laboratory Date - Section Name Experiment 12-Post-lab Questions 1. Consider the balanced redox reaction taking place in an acidic aqueous solution vo," (aq) +SO,'(aq) Vo(aq) +0,- (aq) The unbalanced oxidative half-reaction for this redox reaction is: VO, (aq) → VO" (ag) Because the reaction takes place in aqueous solution, the reaction can be balanced by adding water. 2. Add water to reaction (la) to balance the oxygen. This will give reaction (1b). (1b) Because the reaction takes place in...
Part I Color changes of Methyl Violet. We will study the following reaction: HMV (aq) + MV (aq) + H* (aq) yellow greenish-blue violet Step 1. Place about 4 mL of distilled water in a regular test tube. Add two drops of methyl violet indicator. Record the color of the solution. Violet Next, add drop by drop, add 6M HCI. This forces equilibrium to be shifted to the left or right-circle the right answer). Adding HCl changes color from to...
Le Chatelier's Principle 3. For Part Ill, use Le Châteller's Principle to explain the colour changes observed in test tubes 2 and 3 upon the addition of HC and A . Also, explain the observed colour changes in the test tubes placed in hot and cold water. (4 marks) Test Tube 2: Test Tube 3: Hot Water bath: Cold Water bath: Extension: 1. NaCl(aq) + HCl(aq) = NaCl(aq) + H2O + Cl2(g) When the above system is cooled, gas bubbles...
Question 5 (1 point) Consider the following reaction at equilibrium: 2NH3(g) N2(g) + 3H2(g) Le Châtelier's principle predicts that the moles of H2 in the reaction container will increase with O a decrease in the total pressure (T constant) some removal of NH3 from the reaction vessel (V and T constant) an increase in total pressure by the addition of helium gas (V and T constant) a decrease in the total volume of the reaction vessel (T constant) addition of...
2. Consider the following equilibrium: Mg(OH)2(8) 5 Mg?'(aq) + 2OH(aq) redict the shift in system at equilibrium if a solution of HCI is added dropwise to the system at equilibrium. Briefly explain. 0. Predict the change in equilibrium if a solution of NaOH is added dropwise to the system at equilibrium. Briefly explain. c. Predict the change in equilibrium if the system at equilibrium is diluted by distilled water. Briefly explain
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