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Use the Table 7.1, estimate the pH of following solutions. The colors of the 4 indicators...
For each of the solutions described below, determine the pH range for the solution using the...
For each of the solutions described below, determine the pH range for the solution using the information given and the indicator chart Solution A Indicator Used alizarin yellow Indicator color Yellow bromthymol blue yellow methyl violet violet Range bear the 21 less than 7.6 leathen lib really them 5.1 Gooher the 3.2 bromcresol green green methyl red red The pH range for solution A is 3.2 7.6 Solution B Indicator Used methyl red Indicator color yellow Range leroth 67 alizarin...
250 Experiments 2. A solution causes a yellow color with thymol blue, an orange color with methyl orange, a color w...
250 Experiments 2. A solution causes a yellow color with thymol blue, an orange color with methyl orange, a color with methyl red, and a yellow color with bromthymol blue. The pH must le between and The estimated pH is_ b. A solution causes a yellow color with thymol blue, yellow colors with both methylona and methyl red, and a green color with bromthymol blue. The pH must lie between and The estimated pH is
Consider the titration of 25.00 mL of 0.115M NH3 (ka= 5.70e-10 ; kb= 1.75e-5) with 0.0920...
Consider the titration of 25.00 mL of 0.115M NH3 (ka= 5.70e-10 ;
kb= 1.75e-5) with 0.0920 M HCl.
a) calculate the pH of the solution for the following volume of
HCl: 6.25 mL
b) calculate the pH of the solution for the following volume of
HCl: 31.25 mL
c) calculate the pH of the solution for the following volume of
HCl: 50.0 mL
d) Which indicator from the table minimizes the titration error
and why?
blue Indicator thymol blue bromophenol...
2. (10 pts) Using the information below and the table provided, estimate the pH of a...
2. (10 pts) Using the information below and the table provided, estimate the pH of a TM solution of sodium bisulfate (NaHSO4). • When phenolpthalein is added to 1 M NaHSO4 the resulting solution is colorless. . When thymol blue is added to 1 M NaHSO4 the resulting solution is yellow. • When methyl violet is added to 1 M NaHSO4 the resulting solution is violet. Indicator Solution Methyl Violet Thymol Blue pH range in which the color changes 0.5...
PLEASE EXPLAIN THE ANSWER Alizarin yel 16.16 If the pH is 8.0 at the equivalence point...
PLEASE EXPLAIN THE ANSWER
Alizarin yel 16.16 If the pH is 8.0 at the equivalence point for the titration of a certain weak acid with sodium hydroxide, what indicator might you use? (See Figure 15.10.) pH range for color change Indicator name H ii + + 0 Methyl violet yellow violet Thymol blue (acidic range) red yellow Bromphenol blue yellow blue Methyl orange red yellow Bromcresol green yellow blue Methyl red rad yellow • yellow blue Brumthymol blue Thymol blue...
Name: Tear this page out of your laboratory manual and submit it to your TA with...
Name: Tear this page out of your laboratory manual and submit it to your TA with your answers, B. Post-Lab Assessment Questions: (15 pts) 1. (1 pts) Sodium Hydroxide is a chemical that is found in drain cleaners and as a component of soaps. Is Sodium hydroxide an acid or a base? 2. (10 pts) Using the information below and the table provided, estimate the pH of a 1 M solution of sodium bisulfate (NaHSO4). • When phenolpthalein is added...
The following graph shows the pH curve for the titration of 25 mL of a 0.1...
The following graph shows the pH curve for the titration of 25
mL of a 0.1 M monoprotic acid solution with a 0.1 M solution of a
monoprotic base.
mL of 0.1 M base added
(1) The pH curve represents the titration of a
_______(weak/strong) acid with a _______(weak/strong)base.
(2) Choose a suitable indicator for the endpoint
of the titration from the following pulldown list
__________.(bromocresol green / methyl red / bromothymol blue /
cresol red / thymol blue /...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
b. Solution B thymol blue: yellow methyl orange: yellow methyl red: yellow bromothymol blue: blue Range...
b. Solution B thymol blue: yellow methyl orange: yellow methyl red: yellow bromothymol blue: blue Range of pH:
Table 2: Indicator, pH Range, and Color Change Beaker Indicator Amount Needed for Reaction to Complete...
Table 2: Indicator, pH Range, and Color Change Beaker Indicator Amount Needed for Reaction to Complete pH Range pH at Color Change Color (Initial:Final) 1 Bromothymol Blue 6 6.0-7.5 6.6 Blue > Light Yellow 2 Turmeric Indicator 6 7.5-8.8 5.3 Light Red > Yellow 3 Methyl Orange 20 2.3-4.6 7.9 Orange > Pink Table 3: Titration Data Part 2: mL Citric Acid Added Part 2: pH Part 3: mL Citric Acid Added Part 3: pH Part 3: Color 0.0 10.5...
For each of the solutions described below, determine the pH range for the solution using the information given and the indicator chart Solution A Indicator Used alizarin yellow Indicator color Yellow bromthymol blue yellow methyl violet violet Range bear the 21 less than 7.6 leathen lib really them 5.1 Gooher the 3.2 bromcresol green green methyl red red The pH range for solution A is 3.2 7.6 Solution B Indicator Used methyl red Indicator color yellow Range leroth 67 alizarin...
250 Experiments 2. A solution causes a yellow color with thymol blue, an orange color with methyl orange, a color with methyl red, and a yellow color with bromthymol blue. The pH must le between and The estimated pH is_ b. A solution causes a yellow color with thymol blue, yellow colors with both methylona and methyl red, and a green color with bromthymol blue. The pH must lie between and The estimated pH is
Consider the titration of 25.00 mL of 0.115M NH3 (ka= 5.70e-10 ;
kb= 1.75e-5) with 0.0920 M HCl.
a) calculate the pH of the solution for the following volume of
HCl: 6.25 mL
b) calculate the pH of the solution for the following volume of
HCl: 31.25 mL
c) calculate the pH of the solution for the following volume of
HCl: 50.0 mL
d) Which indicator from the table minimizes the titration error
and why?
blue Indicator thymol blue bromophenol...
2. (10 pts) Using the information below and the table provided, estimate the pH of a TM solution of sodium bisulfate (NaHSO4). • When phenolpthalein is added to 1 M NaHSO4 the resulting solution is colorless. . When thymol blue is added to 1 M NaHSO4 the resulting solution is yellow. • When methyl violet is added to 1 M NaHSO4 the resulting solution is violet. Indicator Solution Methyl Violet Thymol Blue pH range in which the color changes 0.5...
PLEASE EXPLAIN THE ANSWER
Alizarin yel 16.16 If the pH is 8.0 at the equivalence point for the titration of a certain weak acid with sodium hydroxide, what indicator might you use? (See Figure 15.10.) pH range for color change Indicator name H ii + + 0 Methyl violet yellow violet Thymol blue (acidic range) red yellow Bromphenol blue yellow blue Methyl orange red yellow Bromcresol green yellow blue Methyl red rad yellow • yellow blue Brumthymol blue Thymol blue...
Name: Tear this page out of your laboratory manual and submit it to your TA with your answers, B. Post-Lab Assessment Questions: (15 pts) 1. (1 pts) Sodium Hydroxide is a chemical that is found in drain cleaners and as a component of soaps. Is Sodium hydroxide an acid or a base? 2. (10 pts) Using the information below and the table provided, estimate the pH of a 1 M solution of sodium bisulfate (NaHSO4). • When phenolpthalein is added...
The following graph shows the pH curve for the titration of 25
mL of a 0.1 M monoprotic acid solution with a 0.1 M solution of a
monoprotic base.
mL of 0.1 M base added
(1) The pH curve represents the titration of a
_______(weak/strong) acid with a _______(weak/strong)base.
(2) Choose a suitable indicator for the endpoint
of the titration from the following pulldown list
__________.(bromocresol green / methyl red / bromothymol blue /
cresol red / thymol blue /...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
b. Solution B thymol blue: yellow methyl orange: yellow methyl red: yellow bromothymol blue: blue Range of pH:
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