NOTE: Please please please DO NOT submit an answer if it is not solved with a...
NOTE: Please please please DO NOT submit an answer if it is not solved with a LOG DIAGRAM!!!
1. Determine the pH of the following solutions using log diagrams. Compare your answers with your calculations from Problem Set 4.
a) 1.0 x 10-2 M solution of HA, pKa = 7.0.
b) 1.0 x 10-2 M solution of A-.
2. Determine the pH of the following solutions using log diagrams.
a) 1.0 x 10-4 M solution of HA, pKa = 9.0.
b) 1.0 x 10-4 M solution of A-.
Homework Answers
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NOTE: Please please please DO NOT submit an answer if it is not
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Please help, I'm so confused!!!! This is due wednesday night!!! i'm gonna fail :(((( pH of...
Please help, I'm so confused!!!! This is due wednesday night!!!
i'm gonna fail :((((
pH of Buffer Solutions Procedure: Acetic Acid-Sodium Acetate Buffer (pKa acetic acid = 4.75) Weigh about 3.5 g of Na2C2H302 3H2O, record the exact mass, and add to a 250 ml beaker. Measure exactly 8.8 mL of 3.0 M acetic acid (use 10 mL grad cylinder) and add to the beaker containing the sodium acetate. • Measure exactly 55.6 mL of distilled water and add to...
Can you please show math, formulas and explain. 1. If the pH of a solution is...
Can you please show math, formulas and explain. 1. If the pH of a solution is 7.5, what is the pOH? pH = - log[H+] [H+][OH-] = 1.0 x 10-14 M2 2. Given the Ka values for two acids, determine the pKas and which is a stronger acid. Ka1 = 1.38 × 10–7 Ka2 = 1.70 × 10–4 3. The pH of a sample of blood is 7.4, while gastric juice is pH 2.4. The blood sample has: A) one...
Instructions: Complete all the problems in this assignment Show all your work and submit a PDF...
Instructions: Complete all the problems in this assignment Show all your work and submit a PDF with your answers through Husky CT for your lab section. Please e-mail me if you have an issues with the submission. Activity #1 Calculate the pH for the following acidic solutions 1. Calculate the pH and pOH for the following solutions: a. 0.200 M HNO3 b. 0.200 M H2SO4 2. Calculate the equilibrium concentration for [H], [A-], and [HA], the pH and pOH for...
please do all parts. thank you so much asap Which drug would be most readily absorbed...
please do all parts. thank you so much
asap
Which drug would be most readily absorbed from the stomach (pH 2.0)? A. Weak acid, pKa 2.0 B. Weak acid, pKa 3.5 C. Weak base, pKa 3.5 D. Weak base, pKa 9.0 Fill in the ratio of ionized to non-ionized forms for a weak acid drug given the listed differences between pH and pKa: PH-pКа-2 pH-pKa-1 pH-pKa 2 PH-pka 1 pH-pKa lonized Non-ionized than its pKa - If your drug is...
can someone please help me out with questions 1-5, please To add more information this was...
can someone please help me out with questions 1-5, please
To add more information this was given to me for a lab that used
a weak acid and we added a strong base through titration. We just
observed how the ph changes. Later we then used a buffer with a
weak acid to see how buffers affect ph change. These questions are
basically surrounded around those topics to help us prepare.
However, I'm kinda confused about answering them because weak...
please include how you solved the answer N Le 2.30u is. You have 500.0 mL of...
please include how you solved the answer
N Le 2.30u is. You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH2COOH) and 0.25 M sodium acetate (CH,COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? [K,= 1.8 x 10-51 DKA - 109( 1.8x10-5) -4.74 a. 4.88 4.74 +log .30 = 4.8 b. 4.74 c. 4.67 d. 4.79 4.8 X e. 4.54 25
Please walk me step by step on how to get the calculated pH for the weak...
Please walk me step by step on how to get the calculated pH
for the weak acid. I dont understand this at all and really need
step by step not just a brief explanation. Thank you
A pH of Acid Solutions: 1. Strong Acid Measured pH [HCI), 1.48 0.10M [HCI), 2.17 0.010M Molarity (0.0 (1.0) -M2 (10.00 Calculated pH 1.00 2.00 10o = 0.01 -log(0.01)=2 [HC,H,O, Kas 1.8x10s Weak Acid Measured pH [HC,H,O, 3.44 0.01M Molarity 0.10M Calculated pH Compare...
I need help with constructing the Log C vs pH diagram. Also I need the solution...
I
need help with constructing the Log C vs pH diagram. Also I need
the solution to 4.29 and 4.31. PLEASE contstruct the Log C vs pH
diagram to figure out the problem.
4.29 4.30 Using a logarithmic concentration diagram, determine the pH of a solution containing 10-M Na Co, and 10-'M NaOH. Answer: 11.1 Using a logarithmic concentration diagram, find the pH of a solution containing 10-2 M acetic acid and 10-2 M ammonia. Using a logarithmic concentration diagram,...
Please Answer the Following Questions (#1-4) #1 You are proved a buffer whose acid pKa is...
Please Answer the Following Questions (#1-4) #1 You are proved a buffer whose acid pKa is 6.17 and solutions of 1M Hal and 1M NaOH. The initial pH of this buffer is 5.24. Calculate how many milliliters of Hal or NaOH are required to alter the buffer's pH to 6.65 and assume that [HA] and [A-] concentration are in mol units. #2 You are given a 25mL sample of weak acid (HA) of concentration 0.153M, with a Ka of 5.6*10-7...
Please help with Question 4 (a-d): 4. Shown below are a titration curve and reaction coordinate...
Please help with Question 4 (a-d):
4. Shown below are a titration curve and reaction coordinate diagram for the neutralization of 25.0 mL of a weak acid with NaOH. The rate constant for the neutralization reaction at 25°C is 0.500 M-1.5-1. Titration of HA with NaOH at 25°C Reaction Coordinate Diagram for the Neutralization of HA with NaOH 75 kJ/mol рн Potential Energy pH = 5.48 -55 kJ/mol pH = 3.00 0 1 2 3 4 5 6 7 8...
Please help, I'm so confused!!!! This is due wednesday night!!!
i'm gonna fail :((((
pH of Buffer Solutions Procedure: Acetic Acid-Sodium Acetate Buffer (pKa acetic acid = 4.75) Weigh about 3.5 g of Na2C2H302 3H2O, record the exact mass, and add to a 250 ml beaker. Measure exactly 8.8 mL of 3.0 M acetic acid (use 10 mL grad cylinder) and add to the beaker containing the sodium acetate. • Measure exactly 55.6 mL of distilled water and add to...
Instructions: Complete all the problems in this assignment Show all your work and submit a PDF with your answers through Husky CT for your lab section. Please e-mail me if you have an issues with the submission. Activity #1 Calculate the pH for the following acidic solutions 1. Calculate the pH and pOH for the following solutions: a. 0.200 M HNO3 b. 0.200 M H2SO4 2. Calculate the equilibrium concentration for [H], [A-], and [HA], the pH and pOH for...
please do all parts. thank you so much
asap
Which drug would be most readily absorbed from the stomach (pH 2.0)? A. Weak acid, pKa 2.0 B. Weak acid, pKa 3.5 C. Weak base, pKa 3.5 D. Weak base, pKa 9.0 Fill in the ratio of ionized to non-ionized forms for a weak acid drug given the listed differences between pH and pKa: PH-pКа-2 pH-pKa-1 pH-pKa 2 PH-pka 1 pH-pKa lonized Non-ionized than its pKa - If your drug is...
can someone please help me out with questions 1-5, please
To add more information this was given to me for a lab that used
a weak acid and we added a strong base through titration. We just
observed how the ph changes. Later we then used a buffer with a
weak acid to see how buffers affect ph change. These questions are
basically surrounded around those topics to help us prepare.
However, I'm kinda confused about answering them because weak...
please include how you solved the answer
N Le 2.30u is. You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH2COOH) and 0.25 M sodium acetate (CH,COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? [K,= 1.8 x 10-51 DKA - 109( 1.8x10-5) -4.74 a. 4.88 4.74 +log .30 = 4.8 b. 4.74 c. 4.67 d. 4.79 4.8 X e. 4.54 25
Please walk me step by step on how to get the calculated pH
for the weak acid. I dont understand this at all and really need
step by step not just a brief explanation. Thank you
A pH of Acid Solutions: 1. Strong Acid Measured pH [HCI), 1.48 0.10M [HCI), 2.17 0.010M Molarity (0.0 (1.0) -M2 (10.00 Calculated pH 1.00 2.00 10o = 0.01 -log(0.01)=2 [HC,H,O, Kas 1.8x10s Weak Acid Measured pH [HC,H,O, 3.44 0.01M Molarity 0.10M Calculated pH Compare...
I
need help with constructing the Log C vs pH diagram. Also I need
the solution to 4.29 and 4.31. PLEASE contstruct the Log C vs pH
diagram to figure out the problem.
4.29 4.30 Using a logarithmic concentration diagram, determine the pH of a solution containing 10-M Na Co, and 10-'M NaOH. Answer: 11.1 Using a logarithmic concentration diagram, find the pH of a solution containing 10-2 M acetic acid and 10-2 M ammonia. Using a logarithmic concentration diagram,...
Please help with Question 4 (a-d):
4. Shown below are a titration curve and reaction coordinate diagram for the neutralization of 25.0 mL of a weak acid with NaOH. The rate constant for the neutralization reaction at 25°C is 0.500 M-1.5-1. Titration of HA with NaOH at 25°C Reaction Coordinate Diagram for the Neutralization of HA with NaOH 75 kJ/mol рн Potential Energy pH = 5.48 -55 kJ/mol pH = 3.00 0 1 2 3 4 5 6 7 8...
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