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Arsenic acid (H3AsO4) has Ka's of 5.65 x 103,1.75 x 107 and 2.54 x 1012. For...
Arsenic Acid (H3AsO4) has the ability to act as a trip as the ability to act...
Arsenic Acid (H3AsO4) has the ability to act as a trip as the ability to act as a triprotic acid. Calculate the equilibrium concentration of all possible species in a 0.483 M arsenic acid solution. The Kal = 6.0 x 10-3, K2 = 1.0 x 10-7, and Ka3 = 3.2 x 10.
A weak triprotic acid, H3Z has the following Kg values K9.7 x 107 Pta : 601...
A weak triprotic acid, H3Z has the following Kg values K9.7 x 107 Pta : 601 Write the NIE associatedwith each Ka value H22 K5.3 x 10-9 8.23 = 1.4 x 104 Ka Pkg= 3.85 a. H30 H32 tHz0 + M30 H22 H22 H20 2- H2t1120 + b. Of the four weak acid species: H,Z, H,Z", HZ^, Z"; which two could be used to prepare a buffer of pH 3.55? Explain. c. A buffer is made by pouring 250.0 mL...
Question 2 (1 point) A certain polyprotic acid, H2A, has Ka1 6.29 x 107 and Ka2 2.91 x 10-13, Cal...
Question 2 (1 point) A certain polyprotic acid, H2A, has Ka1 6.29 x 107 and Ka2 2.91 x 10-13, Calculate the pH of an 0.25 M solution of H2A. Your Answer Answer
Question 2 (1 point) A certain polyprotic acid, H2A, has Ka1 6.29 x 107 and Ka2 2.91 x 10-13, Calculate the pH of an 0.25 M solution of H2A. Your Answer Answer
If a solution of acetic acid (K = 1.8 x 10-5) has a pH of 2.90,...
If a solution of acetic acid (K = 1.8 x 10-5) has a pH of 2.90, calculate the original (initial) concentration of acetic acid (HC,H,O) (Report your answer in 1 sig. fig. Example: .03942 would be reported as 0.04) Be sure to include a zero in front of the decimal point. QUESTION 37 5 points Save Answer The K, for benzoic acid C.H.COOH is 6.3 x 106. Calculate the equilibrium concentrations of H,0* in the solution if the initial concentration...
QUESTION 9 Chlorous acid has a Ka of 1.1 x 10-2 What is the pH of...
QUESTION 9 Chlorous acid has a Ka of 1.1 x 10-2 What is the pH of a 0.90 M solution of chlorous acid? HCIO2 --H* + CO2 You WILL need the quadratic in this problem. For full points, show the following • ICE Table . Ka ratio (show the products over the reactants equal to 1.1 x 10-2 • Show your work solving for x o Use a quadratic calculator to plug in "a", "b", and "e" . Once you...
It's a weak acid strong base titration Experiment 4: Identification of an unknown acid by titration...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is to learn how to use a separatory funnel to extract a single component away from other compounds in solution. To do so, we will apply the principles of solubility and acid-base behavior you’re seeing in class. One of the compounds is neutral in the acid-base sense. It has no ability to either donate or accept a proton from an aqueous solution, and will remain...
1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid...
1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid form has been obtained by the nurse to increase the chance of problem free administration. Prior to administration, the nurse is going through the rights of medication administration. When confirming the right dose, what term is the most appropriate? a. "160 mg" b. "one teaspoon" c. "one third of a tablespoon d. "SmL 2. A pregnant woman asks why she needs to take a...
help please? this was the only other information given REPORT SHEET Determination of the Solubility-Product Constant...
help please?
this was the only other information given
REPORT SHEET Determination of the Solubility-Product Constant for a Sparingly Soluble Salt EXPERIMENT 8 A. Preparation of a Calibration Curve Initial (Cro121 0.0024 M Absorbance 5 mL Volume of 0.0024 M K Cro Total volume 1. I mL 100 mL 2. 100ML 3. 10 mL 100ml 4. 15 mL 100 ML Molar extinction coefficient for [CrO2) [Cro,2) 2.4x100M 12x1044 2.4810M 3.6810M 0.04) 2037.37 0.85 1.13 2. 3. Average molar extinction coefficient...
Arsenic Acid (H3AsO4) has the ability to act as a trip as the ability to act as a triprotic acid. Calculate the equilibrium concentration of all possible species in a 0.483 M arsenic acid solution. The Kal = 6.0 x 10-3, K2 = 1.0 x 10-7, and Ka3 = 3.2 x 10.
A weak triprotic acid, H3Z has the following Kg values K9.7 x 107 Pta : 601 Write the NIE associatedwith each Ka value H22 K5.3 x 10-9 8.23 = 1.4 x 104 Ka Pkg= 3.85 a. H30 H32 tHz0 + M30 H22 H22 H20 2- H2t1120 + b. Of the four weak acid species: H,Z, H,Z", HZ^, Z"; which two could be used to prepare a buffer of pH 3.55? Explain. c. A buffer is made by pouring 250.0 mL...
Question 2 (1 point) A certain polyprotic acid, H2A, has Ka1 6.29 x 107 and Ka2 2.91 x 10-13, Calculate the pH of an 0.25 M solution of H2A. Your Answer Answer
Question 2 (1 point) A certain polyprotic acid, H2A, has Ka1 6.29 x 107 and Ka2 2.91 x 10-13, Calculate the pH of an 0.25 M solution of H2A. Your Answer Answer
If a solution of acetic acid (K = 1.8 x 10-5) has a pH of 2.90, calculate the original (initial) concentration of acetic acid (HC,H,O) (Report your answer in 1 sig. fig. Example: .03942 would be reported as 0.04) Be sure to include a zero in front of the decimal point. QUESTION 37 5 points Save Answer The K, for benzoic acid C.H.COOH is 6.3 x 106. Calculate the equilibrium concentrations of H,0* in the solution if the initial concentration...
QUESTION 9 Chlorous acid has a Ka of 1.1 x 10-2 What is the pH of a 0.90 M solution of chlorous acid? HCIO2 --H* + CO2 You WILL need the quadratic in this problem. For full points, show the following • ICE Table . Ka ratio (show the products over the reactants equal to 1.1 x 10-2 • Show your work solving for x o Use a quadratic calculator to plug in "a", "b", and "e" . Once you...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid form has been obtained by the nurse to increase the chance of problem free administration. Prior to administration, the nurse is going through the rights of medication administration. When confirming the right dose, what term is the most appropriate? a. "160 mg" b. "one teaspoon" c. "one third of a tablespoon d. "SmL 2. A pregnant woman asks why she needs to take a...
help please?
this was the only other information given
REPORT SHEET Determination of the Solubility-Product Constant for a Sparingly Soluble Salt EXPERIMENT 8 A. Preparation of a Calibration Curve Initial (Cro121 0.0024 M Absorbance 5 mL Volume of 0.0024 M K Cro Total volume 1. I mL 100 mL 2. 100ML 3. 10 mL 100ml 4. 15 mL 100 ML Molar extinction coefficient for [CrO2) [Cro,2) 2.4x100M 12x1044 2.4810M 3.6810M 0.04) 2037.37 0.85 1.13 2. 3. Average molar extinction coefficient...
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