Homework Answers
![Som the coon = 125 me, 0.5m schoon ] = 125x0.5 x 1000 625 p- 2-82 - Isyfur J = 2.82 log[nt] = -2.52 [HI]z 10-2.82 H= [H +) =](http://img.homeworklib.com/questions/3e777740-d51e-11eb-b43d-dbc6b03ad002.png?x-oss-process=image/resize,w_560)
please rate the answer.
Add Answer to:
10^6.79= 6. (2 points) A student diluted 125 ml of 0.500 M acetic acid to a...
6. (2 points) A student diluted 125 mL of 0.500 M acetic acid to a final...
6. (2 points) A student diluted 125 mL of 0.500 M acetic acid to a final volume of 500. mL and found the pH of this solution to be 2.82. Calculate the pk, and percent ionization of this acid. Show your calculations and give your answers to the correct number of sig figs.
• Another student diluted her acetic acid sample with 10 ml of water before titrating with...
• Another student diluted her acetic acid sample with 10 ml of water before titrating with NaOH. Does this change the concentration of the acetic acid sample? Explain. • Does this change the pk, determined from the graph? 3. Look at all of your titration curves. Starting at 1 mL past the neutralization point, what can you say about all four graphs? 4. Use your concentration of acetic acid in mol/L and a density of 0.9987 g/mL for the acetic...
An analytical chemist is titrating 69.7 mL of a 0.3900 M solution of acetic acid (HCH,...
An analytical chemist is titrating 69.7 mL of a 0.3900 M solution of acetic acid (HCH, CO,) with a 1.200 M solution of NaOH. The pK, of acetic acid is 4.70. Calculate the pH of the acid solution after the chemist has added 10.6 mL of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2...
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...
A beaker with 125 mL of an acetic acid buffer with a pH of 5.000 is...
A beaker with 125 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.80 mL of a 0.300 M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.740. Express your answer numerically to two decimal places. Use a minus ( ? ) sign if the pH has...
A beaker with 125 mL of an acetic acid buffer with a pH of 5.000 is...
A beaker with 125 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 8.60 mL of a 0.300 M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.740.
An analytical chemist is titrating 72.8 ml. of a 0.6300 M solution of acetic acid (HCH,CO,) with a 0.6600 M solutio...
An analytical chemist is titrating 72.8 ml. of a 0.6300 M solution of acetic acid (HCH,CO,) with a 0.6600 M solution of KOH. The pk, of acetic acid is 4.70. Calculate the pH of the acid solution after the chemist has added 73.2 ml of the KOH solution to it Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of KOH solution added. Round your answer to 2 decimal...
A) a solution that is made by combining 55 mL of 5.0×10−2 M hydrofluoric acid with...
A) a solution that is made by combining 55 mL of 5.0×10−2 M hydrofluoric acid with 125 mL of 0.11 M sodium fluoride Express your answer using two decimal places. pH= B) Calculate the percent ionization of 0.125 M lactic acid in a solution containing 8.5×10−3 M sodium lactate. C) A 75.0-mL volume of 0.200 M NH3 (Kb=1.8×10−5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 15.0 mL of HNO3. Express your answer numerically. pH=
An analytical chemist is titrating 54.4 ml of a 0.9400 M solution of acetic acid (HCH,CO,)...
An analytical chemist is titrating 54.4 ml of a 0.9400 M solution of acetic acid (HCH,CO,) with a 0.4300 M solution of NaOH. The pk of acetic acid is 4.70. Calculate the pit of the acid solution after the chemist has added 141 ml of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2 decimal...
An analytical chemist is titrating 132.2 mL of a 0.9700 M solution of acetic acid (HCH,CO2)...
An analytical chemist is titrating 132.2 mL of a 0.9700 M solution of acetic acid (HCH,CO2) with a 0.8500 M solution of KOH. The pk of acetic acid is 4.70. Calculate the pH of the acid solution after the chemist has added 84.44 mL of the KOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of KOH solution added. Round your answer to 2 decimal...
6. (2 points) A student diluted 125 mL of 0.500 M acetic acid to a final volume of 500. mL and found the pH of this solution to be 2.82. Calculate the pk, and percent ionization of this acid. Show your calculations and give your answers to the correct number of sig figs.
• Another student diluted her acetic acid sample with 10 ml of water before titrating with NaOH. Does this change the concentration of the acetic acid sample? Explain. • Does this change the pk, determined from the graph? 3. Look at all of your titration curves. Starting at 1 mL past the neutralization point, what can you say about all four graphs? 4. Use your concentration of acetic acid in mol/L and a density of 0.9987 g/mL for the acetic...
An analytical chemist is titrating 69.7 mL of a 0.3900 M solution of acetic acid (HCH, CO,) with a 1.200 M solution of NaOH. The pK, of acetic acid is 4.70. Calculate the pH of the acid solution after the chemist has added 10.6 mL of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2...
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...
An analytical chemist is titrating 72.8 ml. of a 0.6300 M solution of acetic acid (HCH,CO,) with a 0.6600 M solution of KOH. The pk, of acetic acid is 4.70. Calculate the pH of the acid solution after the chemist has added 73.2 ml of the KOH solution to it Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of KOH solution added. Round your answer to 2 decimal...
An analytical chemist is titrating 54.4 ml of a 0.9400 M solution of acetic acid (HCH,CO,) with a 0.4300 M solution of NaOH. The pk of acetic acid is 4.70. Calculate the pit of the acid solution after the chemist has added 141 ml of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2 decimal...
An analytical chemist is titrating 132.2 mL of a 0.9700 M solution of acetic acid (HCH,CO2) with a 0.8500 M solution of KOH. The pk of acetic acid is 4.70. Calculate the pH of the acid solution after the chemist has added 84.44 mL of the KOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of KOH solution added. Round your answer to 2 decimal...
Most questions answered within 3 hours.
-
Evelyn incorporates her sole proprietorship, transferring it to
newly formed Papaya Corporation. The assets transferred have...
asked 4 seconds from now -
A
752 mL sample of water was placed in a 1000 gram pan of aluminum.
The...
asked 1 minute ago -
1 point) Given the significance level α=0.01 find the following:
(a) left-tailed z value z= (b)...
asked 2 minutes ago -
Calculate the expected value, the variance, and the standard
deviation of the given random variable X....
asked 4 minutes ago -
Assume that in a hydrogen atom, the electron circles the nucleus
in a circle of radius...
asked 8 minutes ago -
Describe two obstacles that makes fixing atmospheric nitrogen
difficult.
asked 13 minutes ago -
T
F 53) Most differences
between human groups are the result of biology rather than
culture....
asked 17 minutes ago -
A 5.20 mW helium neon laser emits a visible laser beam with a
wavelength of 633...
asked 20 minutes ago -
Assignment:
Your
organization has made a strategic decision
to
outsourcework
currently performed in house. You have...
asked 19 minutes ago -
A hospital performs 100 surgeries per week. The probability that
complications after surgery occur is 10%....
asked 20 minutes ago -
In preparing its cash flow statement for the year ended December
31, 2018, Green Co. gathered...
asked 22 minutes ago -
Donna is 18 years old and full time accounting student.She is
saving for an overseas holiday...
asked 22 minutes ago