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2. Explain the effect upon the equilibrium, if any, for each of the substances added (sodium...
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...
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...
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...
Explain and write neatly please The data for the table was found by looking at these...
Explain and write neatly please
The data for the table was found by looking at these 4
graphs.
Answer 5a&b, 8a&b, and 9 please.
Table 1 - Equivalence Point and Indicator Color Change Time of Indicator Color Time at Equivalence pH at the Change(sec) Point (sec) Equivalence Point 140 140 7.5 165 165 8.6 Initial pH Final pH 11.8 Acid-Base Combination HCI + NaOH HC,H,O + NaOH HCI + NH OH HC,H,O + NH,OH 1 3.9 12 140 140 5.0...
3. Explain the series of color changes that can occur on thymol blue indicator by the...
3. Explain the series of color changes that can occur on thymol blue indicator by the addition of the following solutions. In each case, give the approximate pH of the solution Color change Red to Yellow Yellow to Blue pH range 12 to 2.8 Thymol blue 8.2 to 9.1 a) A few drops of thymol blue are added to 0.1 M aqueous solution of HCl(aq). b) By adding some solid sodium acetate, NaCH,O2 to a solution of (a) e) By...
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...
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...
help;( Data Sheet Titration and Buffers Name Date Part One: Buffer Solution (record the results from...
help;(
Data Sheet Titration and Buffers Name Date Part One: Buffer Solution (record the results from the video) Lab Section Number of Drops of HCl added to "water": Color changed from to Number of Drops of HCl added to "buffer": Color changed from to to Number of Drops of NaOH added to "water": Number of Drops of NaOH added to "buffer": _Color changed from Color changed from to Part Two: Titration Results for Acid-Base Neutralization (record the results from the...
Please help with the prelab questions! thank you!!!! Especially 2 and 3! Pre-Lab Questions 1. Calculate...
Please help with the prelab questions! thank you!!!!
Especially 2 and 3!
Pre-Lab Questions 1. Calculate the theoretical equivalence point (the volume!) in terms of ml NaOH adde each of the titrations. Assume the concentration of acid is 0.81 M and the concentration of base is 0.51 M. 2. Which equation can be used to find the pH of a buffer? Calculate the pH of a buffer containing 0.20 M CH3COOH and 0.20 M CH3COONa. What is the pH after...
could you Explain in details LeChatelier's Principle 1. Chromate-Dichromate 2 -2 Equation: Cr, 0 HO Explanation...
could you Explain in details LeChatelier's Principle
1. Chromate-Dichromate 2 -2 Equation: Cr, 0 HO Explanation (LeChatelier's Principle) Observations yellcw-crange color (1)H2SO4 (aq) addition turned To (2)NAOH (aq) addition yella lafta 20 minclear 2. Acetic Acid - Acetate lon Equation: Hао CH3 C00H H20 CH3CO0 Observations Explanation (LeChatelier's Principle) PhnE Solution turnad to Yeliow CH 3COONA (aq) addition 3. Ammonia - Ammonium lon Equation: H02 NHe CHi NH Explanation (LeChatelier's Principle) Observations Brigtt pin turnod Suuper hight (1)NH2CI (aq) addition...
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...
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...
Explain and write neatly please
The data for the table was found by looking at these 4
graphs.
Answer 5a&b, 8a&b, and 9 please.
Table 1 - Equivalence Point and Indicator Color Change Time of Indicator Color Time at Equivalence pH at the Change(sec) Point (sec) Equivalence Point 140 140 7.5 165 165 8.6 Initial pH Final pH 11.8 Acid-Base Combination HCI + NaOH HC,H,O + NaOH HCI + NH OH HC,H,O + NH,OH 1 3.9 12 140 140 5.0...
3. Explain the series of color changes that can occur on thymol blue indicator by the addition of the following solutions. In each case, give the approximate pH of the solution Color change Red to Yellow Yellow to Blue pH range 12 to 2.8 Thymol blue 8.2 to 9.1 a) A few drops of thymol blue are added to 0.1 M aqueous solution of HCl(aq). b) By adding some solid sodium acetate, NaCH,O2 to a solution of (a) e) By...
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...
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...
help;(
Data Sheet Titration and Buffers Name Date Part One: Buffer Solution (record the results from the video) Lab Section Number of Drops of HCl added to "water": Color changed from to Number of Drops of HCl added to "buffer": Color changed from to to Number of Drops of NaOH added to "water": Number of Drops of NaOH added to "buffer": _Color changed from Color changed from to Part Two: Titration Results for Acid-Base Neutralization (record the results from the...
Please help with the prelab questions! thank you!!!!
Especially 2 and 3!
Pre-Lab Questions 1. Calculate the theoretical equivalence point (the volume!) in terms of ml NaOH adde each of the titrations. Assume the concentration of acid is 0.81 M and the concentration of base is 0.51 M. 2. Which equation can be used to find the pH of a buffer? Calculate the pH of a buffer containing 0.20 M CH3COOH and 0.20 M CH3COONa. What is the pH after...
could you Explain in details LeChatelier's Principle
1. Chromate-Dichromate 2 -2 Equation: Cr, 0 HO Explanation (LeChatelier's Principle) Observations yellcw-crange color (1)H2SO4 (aq) addition turned To (2)NAOH (aq) addition yella lafta 20 minclear 2. Acetic Acid - Acetate lon Equation: Hао CH3 C00H H20 CH3CO0 Observations Explanation (LeChatelier's Principle) PhnE Solution turnad to Yeliow CH 3COONA (aq) addition 3. Ammonia - Ammonium lon Equation: H02 NHe CHi NH Explanation (LeChatelier's Principle) Observations Brigtt pin turnod Suuper hight (1)NH2CI (aq) addition...
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