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15 A sample of a weak acid was tested with three pH indicators giving the toliowing results Red with Methyl Red Gre...
Use the Table 7.1, estimate the pH of following solutions. The colors of the 4 indicators...
Use the Table 7.1, estimate the pH of following solutions. The colors of the 4 indicators in the solution are given. Explain your answer a. Solution A 2. 3. Make studie acid s you g your pre-l thymol blue: yellow methyl orange: yellow methyl red: orange bromothymol blue: yellow Range of pH b. Solution B thymol blue: yellow methyl orange: yellow methyl red: yellow bromothymol blue: blue Range of pH Row C: methyl red Row D: bromthymol blue 4. Swirl...
4. Two 0.100 M solutions of the weak acids HA and HB are titrated using KOH...
4. Two 0.100 M solutions of the weak acids HA and HB are titrated using KOH at 25°C. The pH at equivalence of HA is 8.5, while the pH at equivalence of HB is 10.3. 1. Which of these two acids is weaker? ii. Which of the indicators below would be suitable in the titration of HA? Which would be suitable in the titration of HB? Indicator Alizarin yellow GR phenolphthalein methyl orange methyl red bromothymol blue pH range for...
Suppose that you wish to titrate formic acid (CH3OH, a weak acid) with potassium hydroxide (a...
Suppose that you wish to titrate formic acid (CH3OH, a weak acid) with potassium hydroxide (a strong base). From the list below, which would be the best indicator to use for this titration? Name of Indicator pH Range Methyl Yellow 2.9 - 4.0 Methyl Orange 2.5 - 4.4 Congo Red 3.0 - 5.0 Phenolphthalein 8.3 - 10.0
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...
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...
A sample of carbonic acid (K = 4.3x10-7) with a concentration of about 1M will be...
A sample of carbonic acid (K = 4.3x10-7) with a concentration of about 1M will be titrated with 1M NaOH. Which indicator from the table below would be appropriate for identifying the the endpoint. pH range for color change 3.2-4.4 3.8-5.4 Indicator Methyl Orange Bromocresol Green Methyl Red Bromothymol Blue Phenolphthalein Alizarin Yellow R 4.8-6.0 6.0-7.6 8.2-10.0 10.1-12.0
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 /...
An unknown solution gives the following sequential results for color when indicators are 3. added (shown...
An unknown solution gives the following sequential results for color when indicators are 3. added (shown below). Using the corresponding color ranges from the table on page 2, estimate the approximate pH range of this unknown solution. Explain. नी (cnge 3.0-46 Bluish purple Bromphenol blue: 4.2-6.8 Yellow Methyl Red: 60-76 Blue Bromothymol Blue: 2.3-10-0 Colorless Phenolpthalein: 2. Sketch a titration curve for the titration of 50 mL of 0.10 M NaOH as 0.1 M HCl is added to it. Label...
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 solut...
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.
#1's drop down menus both read weak/strong.
#2's drop down menu features a list of all the colors listed on the
graph.
0 5 10 15 20 25 30 35 40 45 50 mL of 0.1 M base added (1) The pH curve represents the titration of a __ acid with...
i need help answering these questiona the graph helps to answer #1 Experiment 4 Advance Study...
i need help answering these questiona the graph helps to
answer #1
Experiment 4 Advance Study Assignment: pH, Its Measurement and Applications 1. A solution of a weak acid was tested with the indicators used in this experiment. The colors observed were as follows: Methyl violet Thymol blue Methyl yellow violet orange red Congo red Bromcresol green yellow Chapter 4: pH Measurements-Buffers and Their Properties What is the approximate pH of the solution? 2. An aqueous solution of NH, has...
Use the Table 7.1, estimate the pH of following solutions. The colors of the 4 indicators in the solution are given. Explain your answer a. Solution A 2. 3. Make studie acid s you g your pre-l thymol blue: yellow methyl orange: yellow methyl red: orange bromothymol blue: yellow Range of pH b. Solution B thymol blue: yellow methyl orange: yellow methyl red: yellow bromothymol blue: blue Range of pH Row C: methyl red Row D: bromthymol blue 4. Swirl...
4. Two 0.100 M solutions of the weak acids HA and HB are titrated using KOH at 25°C. The pH at equivalence of HA is 8.5, while the pH at equivalence of HB is 10.3. 1. Which of these two acids is weaker? ii. Which of the indicators below would be suitable in the titration of HA? Which would be suitable in the titration of HB? Indicator Alizarin yellow GR phenolphthalein methyl orange methyl red bromothymol blue pH range for...
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...
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...
A sample of carbonic acid (K = 4.3x10-7) with a concentration of about 1M will be titrated with 1M NaOH. Which indicator from the table below would be appropriate for identifying the the endpoint. pH range for color change 3.2-4.4 3.8-5.4 Indicator Methyl Orange Bromocresol Green Methyl Red Bromothymol Blue Phenolphthalein Alizarin Yellow R 4.8-6.0 6.0-7.6 8.2-10.0 10.1-12.0
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 /...
An unknown solution gives the following sequential results for color when indicators are 3. added (shown below). Using the corresponding color ranges from the table on page 2, estimate the approximate pH range of this unknown solution. Explain. नी (cnge 3.0-46 Bluish purple Bromphenol blue: 4.2-6.8 Yellow Methyl Red: 60-76 Blue Bromothymol Blue: 2.3-10-0 Colorless Phenolpthalein: 2. Sketch a titration curve for the titration of 50 mL of 0.10 M NaOH as 0.1 M HCl is added to it. Label...
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.
#1's drop down menus both read weak/strong.
#2's drop down menu features a list of all the colors listed on the
graph.
0 5 10 15 20 25 30 35 40 45 50 mL of 0.1 M base added (1) The pH curve represents the titration of a __ acid with...
i need help answering these questiona the graph helps to
answer #1
Experiment 4 Advance Study Assignment: pH, Its Measurement and Applications 1. A solution of a weak acid was tested with the indicators used in this experiment. The colors observed were as follows: Methyl violet Thymol blue Methyl yellow violet orange red Congo red Bromcresol green yellow Chapter 4: pH Measurements-Buffers and Their Properties What is the approximate pH of the solution? 2. An aqueous solution of NH, has...
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