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5. A rainwater sample shows a yellow color when tested with both methyl red and bromthymol...
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
Methyl red has a pKa of 5.0 and is red in its acid form and yellow...
Methyl red has a pKa of 5.0 and is red in its acid form and yellow in its basic form. If several drops of this indicator are placed in a 25.0 −mL sample of HCl, what color will the solution appear? Yellow or red? This answer is RED I need part B answered: B) If 0.130 M NaOH is slowly added to the HCl sample, in what pH range will the indicator change color?
Addition of phenolphthalein to an unknown colorless solution does not cause a color change. The addition...
Addition of phenolphthalein to an unknown colorless solution does not cause a color change. The addition of bromthymol blue to the same solution leads to a yellow color. Is the solution acidic, neutral, or basic? Which of the following can you establish about the solution: What other indicator or indicators would you want to use to determine the pH of the solution more precisely?
15 A sample of a weak acid was tested with three pH indicators giving the toliowing results Red with Methyl Red Gre...
15 A sample of a weak acid was tested with three pH indicators giving the toliowing results Red with Methyl Red Green with Bromophenol Blue Orange with Methyl Orange Therefore the pH range for this sample is o a 30-6.2 e b.3.0 -4.4 O c 3.5-60 o d. 2.8-4.4
15 A sample of a weak acid was tested with three pH indicators giving the toliowing results Red with Methyl Red Green with Bromophenol Blue Orange with Methyl Orange Therefore the...
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...
Please show all work as need and circle the correct answer. Thanks 6. Maleic acid is...
Please show all work as need
and circle the correct answer. Thanks
6. Maleic acid is a diprotic organic acid with the structure shown below. A titration curve was generated when 75.0 mL of a 0.0125 M maleic acid solution was titrated with NaOH. HOOC COOH PH maleic acid o 80 20 40 60 Volume of NaOH (mL) A. (6 pts) What was the approximate concentration of the NaOH solution? B. (3 pts) What is the approximate pka of maleic...
How do you get the answer just a little confused Version 1 12. Methyl red is...
How do you get the answer just a little confused
Version 1 12. Methyl red is a common acid-base indicator. It has a Ka equal to 6.3 x 10-. Its un-ionized form 7.82 is red and its anionic form is yellow. What color would a methyl red solution have at pH A) violet B) yellow C) green D) blue E) red 13 Assuming egual concentrations of conllgate hase and acid uhich one of tho f uolu, n a
Acids, Bases, and Buffers CHEM& 121 Lab Partner Data Part A Red pH Red Cabbage Test Tube Blue Lit...
Acid, bases and buffers
Acids, Bases, and Buffers CHEM& 121 Lab Partner Data Part A Red pH Red Cabbage Test Tube Blue Litmus (color) Solution Juice (color)values (colbr) no reaction 2.890 Magenta 11.37dark green Red blue no reaction 2.700 Magenta lemon juice soft drink drain cleaner no reaction detergent baking soda no reaction red red no raction 3.530 Purple blue 12.56 no reactionno reaction 8.700 dark green 9.350 teal/green Part B Total Number of rops of HCl(aq) Added DI Water...
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...
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...
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
15 A sample of a weak acid was tested with three pH indicators giving the toliowing results Red with Methyl Red Green with Bromophenol Blue Orange with Methyl Orange Therefore the pH range for this sample is o a 30-6.2 e b.3.0 -4.4 O c 3.5-60 o d. 2.8-4.4
15 A sample of a weak acid was tested with three pH indicators giving the toliowing results Red with Methyl Red Green with Bromophenol Blue Orange with Methyl Orange Therefore 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...
Please show all work as need
and circle the correct answer. Thanks
6. Maleic acid is a diprotic organic acid with the structure shown below. A titration curve was generated when 75.0 mL of a 0.0125 M maleic acid solution was titrated with NaOH. HOOC COOH PH maleic acid o 80 20 40 60 Volume of NaOH (mL) A. (6 pts) What was the approximate concentration of the NaOH solution? B. (3 pts) What is the approximate pka of maleic...
How do you get the answer just a little confused
Version 1 12. Methyl red is a common acid-base indicator. It has a Ka equal to 6.3 x 10-. Its un-ionized form 7.82 is red and its anionic form is yellow. What color would a methyl red solution have at pH A) violet B) yellow C) green D) blue E) red 13 Assuming egual concentrations of conllgate hase and acid uhich one of tho f uolu, n a
Acid, bases and buffers
Acids, Bases, and Buffers CHEM& 121 Lab Partner Data Part A Red pH Red Cabbage Test Tube Blue Litmus (color) Solution Juice (color)values (colbr) no reaction 2.890 Magenta 11.37dark green Red blue no reaction 2.700 Magenta lemon juice soft drink drain cleaner no reaction detergent baking soda no reaction red red no raction 3.530 Purple blue 12.56 no reactionno reaction 8.700 dark green 9.350 teal/green Part B Total Number of rops of HCl(aq) Added DI Water...
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...
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...
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