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Consider the following reaction, which depicts the equilibrium found in most drinking water distribution pipes. 1....
5) For a particular chemical reaction it is found that the value for the equilibrium constant...
5) For a particular chemical reaction it is found that the value for the equilibrium constant for the reaction decreases as temperature increases. Based on this we can conclude a) AH>0 b) AH® < 0 c) AS > 0 d) AS 0 e) AG < 0 6) When 0.0100 moles of dimethyl amine ((CH3)2NH) is added to 1.000 liters of water, the pH of the water increases above the value pH = 7.0 found for neutral solutions. Based on this,...
2. Consider the following equilibrium represent by the reversible equation below: Cu?"(aq) + 4 NH OH(aq)...
2. Consider the following equilibrium represent by the reversible equation below: Cu?"(aq) + 4 NH OH(aq) = [Cu(NH3)4]?" (aq) + 4 H2O(1) Blue Colorless Navy blue Predict the shift (explain why) and indicate the color of the solution when a. Drops of strong acid is added b. H2S gas is bubbled in the solution. Note: H2S reacts with transition metal cations. c. Water is added to the mixture at equilibrium.
1. Write the equilibrium constant expression for the reaction N2 (g) + 3 H2 (g) D ...
1. Write the equilibrium constant expression for the reaction N2 (g) + 3 H2 (g) D 2 NH3 (g) 2. For the reaction in question 1, delta H = -92 kj*mol^-1 Predict the direction of shift of the equilibrium of the above reaction caused by adding N2 at constant volume and temperature removing H2 at constant volume and temperature adding N2 at constant volume and temperature raising the temperature at constant total pressure 3. Hydrogen fluoride (HF) is a weak...
1. In the following reaction at equilibrium, what will happen if more CO(g) is added? COCI:(9)...
1. In the following reaction at equilibrium, what will happen if more CO(g) is added? COCI:(9) CO(g) + Cl (9) A) reaction will shift to the right B) reaction will shift to the left C) nothing will happen D) the equilibrium constant will change E) not enough information given to predict 2. The following reaction is exothermic (with A and B reactants) and at equilibrium. What will happen if heat is added? A+B 2 C + D A) more C...
QUESTION 19 Which compound listed below has the smallest molar solubility in water? CdCO3 (Ksp =...
QUESTION 19 Which compound listed below has the smallest molar solubility in water? CdCO3 (Ksp = 5.2 x 10-12) ОА. OB. Ca(OH)2 (Ksp = 2,5 x 10-14) OCAgI (Ksp = 8.3 x 10-17 OD.CaF2 (Ksp = 3.9 x 10-11) OE ZnCO3 (Ksp = 1.4 x 10-11) QUESTION 20 Click Save and Submit to save and submit Chek Saue Al Anser to save alters ve here to search Remaining Time: 1 hour, 05 minutes, 02 seconds. * Question Completion Status: QUESTION...
1. Write the equilibrium constant expression for the following reaction: H3PO4(aq) + 3 H2O(l) ↔ PO4...
1. Write the equilibrium constant expression for the following reaction: H3PO4(aq) + 3 H2O(l) ↔ PO4 3- (aq) + 3 H3O+ (aq) 2. (LeChatlier’s principle) The following reaction has Kc = 4.2 x 102 at 325oC, all gases. PBr3 + Cl2 ↔ PCl3 + Br2 ΔHo = -47 kJ/mol a. For this reaction at equilibrium, [PBr3] = [Cl2] = 0.0273 M, and [PCl3] = [Br2] = 0.560 M. What do you expect to happen to the equilibrium concentrations of each...
Section Name Experiment 2 Advance Study Assignment: Properties of Systems in Chemical Equilibrium 1. Methyl orange,...
Section Name Experiment 2 Advance Study Assignment: Properties of Systems in Chemical Equilibrium 1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) H(aq) + MO (aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH...
35% l T-Mobile 2:26 AM Not Secure - mychemistryprofcom 1.Which compound is insoluble in water? a....
35% l T-Mobile 2:26 AM Not Secure - mychemistryprofcom 1.Which compound is insoluble in water? a. NaCO b. NH,NO, c. CaCO, d. CaCI, e. LiCIO 2. What is the net ionic equation for the reaction between HCl and NaHCO,? a. H.CO,(aq) HO+CO (g) b. HCl(a)HCO,(aq) H,0+ CO.(g) d. H,O +CO.(g) H'(aq) + HCO, (aq) e.H(aq) NaHCO,(aq) Na (aq) + H,O+CO (g) 3. What is the net ionic equation for the reaction between HNO and Na SO,? a H,SO,(aq) H,0+SO.(g) b....
EXPERIMENT Provided Materials and Equipment: General glassware found in the lab or in your drawer/locker 60...
EXPERIMENT Provided Materials and Equipment: General glassware found in the lab or in your drawer/locker 60 mL of 0.1 M HCl(aq) 60 mL of 0.1 M NaOH(aq) pH electrode and storage solution Logger Pro software Standard buffers for calibration pH 4.00 and pH 7.00 2 burets (per group of 4 students) Four solutions to test For the acid: Pour 60 mL of HCL in a buret using a funnel. Prepare 25 mL of each solution in a separate beaker (water,...
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...
5) For a particular chemical reaction it is found that the value for the equilibrium constant for the reaction decreases as temperature increases. Based on this we can conclude a) AH>0 b) AH® < 0 c) AS > 0 d) AS 0 e) AG < 0 6) When 0.0100 moles of dimethyl amine ((CH3)2NH) is added to 1.000 liters of water, the pH of the water increases above the value pH = 7.0 found for neutral solutions. Based on this,...
2. Consider the following equilibrium represent by the reversible equation below: Cu?"(aq) + 4 NH OH(aq) = [Cu(NH3)4]?" (aq) + 4 H2O(1) Blue Colorless Navy blue Predict the shift (explain why) and indicate the color of the solution when a. Drops of strong acid is added b. H2S gas is bubbled in the solution. Note: H2S reacts with transition metal cations. c. Water is added to the mixture at equilibrium.
1. In the following reaction at equilibrium, what will happen if more CO(g) is added? COCI:(9) CO(g) + Cl (9) A) reaction will shift to the right B) reaction will shift to the left C) nothing will happen D) the equilibrium constant will change E) not enough information given to predict 2. The following reaction is exothermic (with A and B reactants) and at equilibrium. What will happen if heat is added? A+B 2 C + D A) more C...
QUESTION 19 Which compound listed below has the smallest molar solubility in water? CdCO3 (Ksp = 5.2 x 10-12) ОА. OB. Ca(OH)2 (Ksp = 2,5 x 10-14) OCAgI (Ksp = 8.3 x 10-17 OD.CaF2 (Ksp = 3.9 x 10-11) OE ZnCO3 (Ksp = 1.4 x 10-11) QUESTION 20 Click Save and Submit to save and submit Chek Saue Al Anser to save alters ve here to search Remaining Time: 1 hour, 05 minutes, 02 seconds. * Question Completion Status: QUESTION...
Section Name Experiment 2 Advance Study Assignment: Properties of Systems in Chemical Equilibrium 1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) H(aq) + MO (aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH...
35% l T-Mobile 2:26 AM Not Secure - mychemistryprofcom 1.Which compound is insoluble in water? a. NaCO b. NH,NO, c. CaCO, d. CaCI, e. LiCIO 2. What is the net ionic equation for the reaction between HCl and NaHCO,? a. H.CO,(aq) HO+CO (g) b. HCl(a)HCO,(aq) H,0+ CO.(g) d. H,O +CO.(g) H'(aq) + HCO, (aq) e.H(aq) NaHCO,(aq) Na (aq) + H,O+CO (g) 3. What is the net ionic equation for the reaction between HNO and Na SO,? a H,SO,(aq) H,0+SO.(g) b....
EXPERIMENT Provided Materials and Equipment: General glassware found in the lab or in your drawer/locker 60 mL of 0.1 M HCl(aq) 60 mL of 0.1 M NaOH(aq) pH electrode and storage solution Logger Pro software Standard buffers for calibration pH 4.00 and pH 7.00 2 burets (per group of 4 students) Four solutions to test For the acid: Pour 60 mL of HCL in a buret using a funnel. Prepare 25 mL of each solution in a separate beaker (water,...
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...
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