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1. Test Reagent: CH,COONa a. Write the equilibrium equation for the dissociation of CH,COONa in water. b. What is t...
The equilibrium between the methyl orange indicator and indicator ion can be expressed in the following...
The equilibrium between the methyl orange indicator and indicator ion can be expressed in the following reaction: (CH3)2NHC6H4N=NC6H4SO3 +H2O (CH3)2NC6H4N=NC6H4SO3- + H3O+ Methyl Orange ((CH3)2NHC6H4N=NC6H4SO3 ) is red while the indicator ion ((CH3)2NC6H4N=NC6H4SO3-) is yellow-orange Describe the color changes on the addition of: HCl NaOH Interpret the hydrochloric acid addition change in terms of the methyl orange indicator and indicator ion equilibria and the Le Chatelier principle Interpret the sodium hydroxide addition change in terms of the methyl orange indicator...
(acacH+H2O =acac- + H3O+ ) hi, according to this equilibrium equation , is the following explanation...
(acacH+H2O =acac- + H3O+ ) hi, according to this equilibrium equation , is the following explanation correct? sodium acetate is the conjugate base of acetic acid(a weak acid). Its addition results in a shift in the acid dissociation equilibrium to the right. This also leads to a reduced proton concentration and consequently an increase in the pH of the solution . this increased acac- concentration caused the equilibria associated with the formation of the product complex to shift right to...
For Activity 2: Observations and Interpretations CH,COOH(aq) C CHCOO (aq) + 1) What was the color...
For Activity 2: Observations and Interpretations CH,COOH(aq) C CHCOO (aq) + 1) What was the color of the solution after adding the drop of methyl orange indicator red indicator showing high (H+] 2) What color did you observe after adding the sodium acetate, CH,COONa? it went on orange: indicator housing less 3) Assume that the dynamic equilibrium represented in the equation given above is present in the original solution you placed in the test tube. Based on LeChatelier's Principle, as...
Adding acetate ion produces a change in the color of the indicator. Watch Video-le where a...
Adding acetate ion produces a change in the color of the indicator. Watch Video-le where a drop of methyl orange is added to each of two 3-mL samples of 0.1 M CH3COOH (acetic acid). The 1 M Na CH3COO (sodium acetate) is added a few drops at a time (with mixing) to one of the samples. The effect on the dissociation of acetic acid that is produced by adding sodium acetate is called the common ion effect. Specify the color...
Need help understading the results of this lab that's about equilibrium and Le Chatelier's principle Reaults:...
Need help understading the results of this lab that's about
equilibrium and Le Chatelier's principle
Reaults:
(#4) The addition of solid sodium acetate:
turned the solution green
(#5) The addition of NaOH:
turned the solution blue
System IV Acetic acid with bromocresol green indicator 1. Place about 10 drops of 0.1M HCl solution into a well and add one drop of bromocresol green to the well. Save as a color reference. 2. Place about 10 drops of 0.1M NaOH solution...
lab Exploring Chemistry B. Reflective Exercises 1. In the carbonic acid equilibrium system, what happened to...
lab
Exploring Chemistry B. Reflective Exercises 1. In the carbonic acid equilibrium system, what happened to the size of the balloon upon the of more acid (HCI)? Was this expected? Why or why not? (Show your answer using the equilibrium equation) 2 Upon addition of NaOH to the equilibrium system, what happened to the size of the balloon? Was this expected?Why or why not? (Show your answer using the equilibrium equation.) 3. What direction of shift is expected with an...
12. If the acetic acid dissociation constant is 1.8 X 10-5 Ka, and its concentration before...
12. If the acetic acid dissociation constant is 1.8 X 10-5 Ka, and its concentration before dissociation (0.15M), the concentration of H+] is equal to the following equilibrium equation. CH,COOH = CH.COO+H* B) 6.41 X 104 C)2.62 X 104 D)1.64 X 10 13. When dissolved (1.93 g) of HNO, acid (MW=47) and dilute the volume to 500 ml the H concentration in the solution was 7.63X10 M, the value of the dissociation constant Ka was equal to : A) 8...
I need help with these questions. Part I.A 1. Why did the indicator initially turn blue...
I
need help with these questions.
Part I.A 1. Why did the indicator initially turn blue when NaOH was added to flask A? Consider equilibrium: Hin + H2O + H2O + In [1 mark] 2. When you left the flask A to stand for several minutes after the addition of NaOH, why did the contents of the flask A slowly change colour back from blue to yellow? Consider equilibriums: Hin + H2O + H30+ + In [2 marks] CO2(g) +...
Mg(OH)2 is a sparingly soluble salt with a solubility product, Kp, of 5.61 x 10-1 t...
Mg(OH)2 is a sparingly soluble salt with a solubility product, Kp, of 5.61 x 10-1 t is used to control the pH and provide nutrients in the biological The common-ion effect is an application of Le Châtelier's principle, which states that an equilibrium system that is stressed will work to alleviate that stress and reestablish equilibrium. (microbial) treatment of municipal wastewater streams. What is the ratio of solubility of Mg(OH)2 dissolved in pure H2O to Mg(OH)2 dissolved in a 0.190M...
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...
For Activity 2: Observations and Interpretations CH,COOH(aq) C CHCOO (aq) + 1) What was the color of the solution after adding the drop of methyl orange indicator red indicator showing high (H+] 2) What color did you observe after adding the sodium acetate, CH,COONa? it went on orange: indicator housing less 3) Assume that the dynamic equilibrium represented in the equation given above is present in the original solution you placed in the test tube. Based on LeChatelier's Principle, as...
Adding acetate ion produces a change in the color of the indicator. Watch Video-le where a drop of methyl orange is added to each of two 3-mL samples of 0.1 M CH3COOH (acetic acid). The 1 M Na CH3COO (sodium acetate) is added a few drops at a time (with mixing) to one of the samples. The effect on the dissociation of acetic acid that is produced by adding sodium acetate is called the common ion effect. Specify the color...
Need help understading the results of this lab that's about
equilibrium and Le Chatelier's principle
Reaults:
(#4) The addition of solid sodium acetate:
turned the solution green
(#5) The addition of NaOH:
turned the solution blue
System IV Acetic acid with bromocresol green indicator 1. Place about 10 drops of 0.1M HCl solution into a well and add one drop of bromocresol green to the well. Save as a color reference. 2. Place about 10 drops of 0.1M NaOH solution...
lab
Exploring Chemistry B. Reflective Exercises 1. In the carbonic acid equilibrium system, what happened to the size of the balloon upon the of more acid (HCI)? Was this expected? Why or why not? (Show your answer using the equilibrium equation) 2 Upon addition of NaOH to the equilibrium system, what happened to the size of the balloon? Was this expected?Why or why not? (Show your answer using the equilibrium equation.) 3. What direction of shift is expected with an...
12. If the acetic acid dissociation constant is 1.8 X 10-5 Ka, and its concentration before dissociation (0.15M), the concentration of H+] is equal to the following equilibrium equation. CH,COOH = CH.COO+H* B) 6.41 X 104 C)2.62 X 104 D)1.64 X 10 13. When dissolved (1.93 g) of HNO, acid (MW=47) and dilute the volume to 500 ml the H concentration in the solution was 7.63X10 M, the value of the dissociation constant Ka was equal to : A) 8...
I
need help with these questions.
Part I.A 1. Why did the indicator initially turn blue when NaOH was added to flask A? Consider equilibrium: Hin + H2O + H2O + In [1 mark] 2. When you left the flask A to stand for several minutes after the addition of NaOH, why did the contents of the flask A slowly change colour back from blue to yellow? Consider equilibriums: Hin + H2O + H30+ + In [2 marks] CO2(g) +...
Mg(OH)2 is a sparingly soluble salt with a solubility product, Kp, of 5.61 x 10-1 t is used to control the pH and provide nutrients in the biological The common-ion effect is an application of Le Châtelier's principle, which states that an equilibrium system that is stressed will work to alleviate that stress and reestablish equilibrium. (microbial) treatment of municipal wastewater streams. What is the ratio of solubility of Mg(OH)2 dissolved in pure H2O to Mg(OH)2 dissolved in a 0.190M...
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...
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