Homework Answers
a) HCl - strong acid
b) KOH - strong base
3)NH4NO3 - strong acid
4)NH4OH - weak base
5) NaOH - srrong base
6)HClO4 -strong acid
7)Mg(OH)2 - weak base
8)BaSO4 - Salt
9) CH3COOH - week acid
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Ε ΠΠΙΠΙΠ ΙΣ ΟΠΟΠΠΠΠΠΠΠΠΠΠΠΠΠΠΠΠΙ ΙΙ Experiment 12 Determination of Solution pH Questions and Problems (May be...
100 Experiment 12 Determination of Solution pH 2. Provide equations for each of the following. (Use...
100 Experiment 12 Determination of Solution pH 2. Provide equations for each of the following. (Use compounds from question 1. if you want a) Dissociation of a strong base in water b) Dissociation of a strong acid in water c) lonization of a weak base in water d) lonization of a weak acid in water e) Autoionization of water _ M 3. A 5.0 M solution of HCl in water has a proton concentration of M. 4. A 0.01 M...
answer questions 1-3 ame answer questions 1-3 Name Lab Instructor Experiment 11-pH Determination of Solutions and...
answer questions 1-3
ame answer questions 1-3 Name Lab Instructor Experiment 11-pH Determination of Solutions and Buffer Solutions Prelaboratory Exercises Date 1. A solution has a pH of 5.50. a. What is the pOH of this solution? b. Is the solution acidic, basic, or neutral? Give reasons c. Calculate the concentration of [H O'] and [OH-1 in this solution. 2. Solution A has a hydronium ion concentration of 1.3 x 10- M. Solution B has a hydroxide ion concentration of...
EQUL 499- Det. Of pH of Strong Acid, weak acid, salt, and buffer solution Discussion Topics...
EQUL 499- Det. Of pH of Strong Acid, weak acid, salt, and buffer solution Discussion Topics Discussion Topics (need to submit in Blackboard): 1. What is a buffer? • A buffer is a solution that, when introduced to a new environment, undergoes minimal pH change, typically when adding acidic or basic solutions. These are extremely important for life because the pH of human blood is delicate and even if it is changed by 0.1, there may be catastrophic effects. 2....
36) Which one of the following is not a strong acid? (or a weak electrolyte?) a) HNO )HCI HI )HF e) HCIO Answer: 37) The is the conjugate species that remains after an acid donates a proton is ca...
36) Which one of the following is not a strong acid? (or a weak electrolyte?) a) HNO )HCI HI )HF e) HCIO Answer: 37) The is the conjugate species that remains after an acid donates a proton is called its conjugate base. What base of the hydronium ion, HO? B)HO C)HO D)H E HO'has no conjugate base. Answer: acid-base pair? 38) For the reaction shown below, which of the following is a conjugate acid A)CHsN, H:0 B) CsH,N, CsH,NH' C)...
Questions and Problems 04 What would be the overall charge in any IV solution? Why? D....
Questions and Problems 04 What would be the overall charge in any IV solution? Why? D. Concentration of a Sodium Chloride Solution 1. Mass of evaporating dish 2. Volume of NaCl solution 3. Mass of dish and NaCl solution 4. Mass of dish and dry NaCl Calculations 5. Mass of NaCl solution 6. Mass of the dry NaCl salt 7. Mass/mass percent (Show calculations.) 8. Mass/volume percent (Show calculations.) % (m/v) 9. Moles of NaCI (Show calculations.) moles B. Electrolytes...
Complete the table for an aqueous solution @ 25°C each row represents one solution Грн POH...
Complete the table for an aqueous solution @ 25°C each row represents one solution Грн POH 3.25 0.25 (H) (OH) Acidic or basic 6.14x10 12.25 1.77 9.83x102 A 0.185M solution of weak acid has a pH of 2.95. Calculate the lonization constant (K) for the acid. For this you will need to determine the relationship between the [HA], and the [H01. You're given [HA] and you'll need to find [H,0+- you can get this from pH. Just as we have...
i want answer to all questions please Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the so...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
I added everything thing. this is the lab question you need to solve. First assigned buffer...
I added everything thing.
this is the lab question you need to solve.
First assigned buffer pH: 2.031 Second assigned buffer pH: 9.171 Available Buffer Systems (acid/ base) pka of Conjugate Acid 2.847 4.757 malonic acid/ monosodium malonate acetic acid/ sodium acetate ammonium chloride/ ammonia triethylammonium chloride/ triethylamine 9.244 10.715 1) Buffer system details: Given pH Name and volume conjugate acid Name and volume conjugate base 2) Calculations for preparation of high capacity buffer system. Introduction In this experiment, you...
This is from a Study of Buffer Solutions and pH of Salt Solutions Lab. I calculated...
This is from a Study of Buffer Solutions and pH of Salt
Solutions Lab. I calculated Ka to be 3.2*10^-5. Why is my value
larger than the standard value?
Procedure:
10. How does your calculated value of Ka compare with the standard value of Ka for acetic acid? Discuss why your value may be larger or smaller than the standard value. Caleutats Ka 3.2x 10-5) Cyato-s Learning Objectives: 1. To test the acidic and basic properties of ionic compounds 2....
I need help with the problem in the last photo.. I thought I’d post my lab...
I need help with the problem in the last photo.. I thought I’d
post my lab explanation and data if that helps you get a better
understanding, but it’s just the question at the end. I know I need
to use the Henderson Hasselbach equation.. so... 4.70 = pKa + log(
[acetate-ion] / [acetic-ion] ) and solve for pKa, then Ka.. but how
do I find the concentrations to put in the log fraction?
Thanks, in advance!
Learning Objectives: 1....
100 Experiment 12 Determination of Solution pH 2. Provide equations for each of the following. (Use compounds from question 1. if you want a) Dissociation of a strong base in water b) Dissociation of a strong acid in water c) lonization of a weak base in water d) lonization of a weak acid in water e) Autoionization of water _ M 3. A 5.0 M solution of HCl in water has a proton concentration of M. 4. A 0.01 M...
answer questions 1-3
ame answer questions 1-3 Name Lab Instructor Experiment 11-pH Determination of Solutions and Buffer Solutions Prelaboratory Exercises Date 1. A solution has a pH of 5.50. a. What is the pOH of this solution? b. Is the solution acidic, basic, or neutral? Give reasons c. Calculate the concentration of [H O'] and [OH-1 in this solution. 2. Solution A has a hydronium ion concentration of 1.3 x 10- M. Solution B has a hydroxide ion concentration of...
EQUL 499- Det. Of pH of Strong Acid, weak acid, salt, and buffer solution Discussion Topics Discussion Topics (need to submit in Blackboard): 1. What is a buffer? • A buffer is a solution that, when introduced to a new environment, undergoes minimal pH change, typically when adding acidic or basic solutions. These are extremely important for life because the pH of human blood is delicate and even if it is changed by 0.1, there may be catastrophic effects. 2....
36) Which one of the following is not a strong acid? (or a weak electrolyte?) a) HNO )HCI HI )HF e) HCIO Answer: 37) The is the conjugate species that remains after an acid donates a proton is called its conjugate base. What base of the hydronium ion, HO? B)HO C)HO D)H E HO'has no conjugate base. Answer: acid-base pair? 38) For the reaction shown below, which of the following is a conjugate acid A)CHsN, H:0 B) CsH,N, CsH,NH' C)...
Questions and Problems 04 What would be the overall charge in any IV solution? Why? D. Concentration of a Sodium Chloride Solution 1. Mass of evaporating dish 2. Volume of NaCl solution 3. Mass of dish and NaCl solution 4. Mass of dish and dry NaCl Calculations 5. Mass of NaCl solution 6. Mass of the dry NaCl salt 7. Mass/mass percent (Show calculations.) 8. Mass/volume percent (Show calculations.) % (m/v) 9. Moles of NaCI (Show calculations.) moles B. Electrolytes...
Complete the table for an aqueous solution @ 25°C each row represents one solution Грн POH 3.25 0.25 (H) (OH) Acidic or basic 6.14x10 12.25 1.77 9.83x102 A 0.185M solution of weak acid has a pH of 2.95. Calculate the lonization constant (K) for the acid. For this you will need to determine the relationship between the [HA], and the [H01. You're given [HA] and you'll need to find [H,0+- you can get this from pH. Just as we have...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
I added everything thing.
this is the lab question you need to solve.
First assigned buffer pH: 2.031 Second assigned buffer pH: 9.171 Available Buffer Systems (acid/ base) pka of Conjugate Acid 2.847 4.757 malonic acid/ monosodium malonate acetic acid/ sodium acetate ammonium chloride/ ammonia triethylammonium chloride/ triethylamine 9.244 10.715 1) Buffer system details: Given pH Name and volume conjugate acid Name and volume conjugate base 2) Calculations for preparation of high capacity buffer system. Introduction In this experiment, you...
This is from a Study of Buffer Solutions and pH of Salt
Solutions Lab. I calculated Ka to be 3.2*10^-5. Why is my value
larger than the standard value?
Procedure:
10. How does your calculated value of Ka compare with the standard value of Ka for acetic acid? Discuss why your value may be larger or smaller than the standard value. Caleutats Ka 3.2x 10-5) Cyato-s Learning Objectives: 1. To test the acidic and basic properties of ionic compounds 2....
I need help with the problem in the last photo.. I thought I’d
post my lab explanation and data if that helps you get a better
understanding, but it’s just the question at the end. I know I need
to use the Henderson Hasselbach equation.. so... 4.70 = pKa + log(
[acetate-ion] / [acetic-ion] ) and solve for pKa, then Ka.. but how
do I find the concentrations to put in the log fraction?
Thanks, in advance!
Learning Objectives: 1....
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