Homework Answers
CH3COOH + NaOH ---------> CH3COONa + H2O
millimoles of CH3COOH = 10.0 x 0.10 = 1.0
millimoles of NaOH added = 37.5 x 0.100 = 3.75
3.75 - 1.0 = 2.75 millimoles NaOH left
[NaOH] = 2.75 / 47.5 = 0.056 M
as NaOH is strong base
[NaOH] = [OH-] = 0.056 M
pOH = - log OH-]
pOH = - log [0.056]
pOH = 1.25
pH = 14 - 1.25
pH = 12.75
Add Answer to:
Due Sunday, Nov 4, 11:59pm EST 9 Calculate pH During Acid Base Titration CONTENT FEEDBACK Question...
10:08 9 - UEH Assignment Empirical and Molecula... Due Monday, Nov 25, 11:59pm EST - Calculate...
10:08 9 - UEH Assignment Empirical and Molecula... Due Monday, Nov 25, 11:59pm EST - Calculate the percent composition of a compound given Questionents A 17.10 g compound is made up of 5.900 g N and 11.20 g C. What is the percent composition of nitrogen in this compound? • Your answer should have four significant figures. Provide your answer below: % MORE INSTRUCTION SUBMIT Content attribution
Calculate pH during acid base titration Question When titrating a strong acid with a strong base,...
Calculate pH during acid base titration Question When titrating a strong acid with a strong base, after the equivalence point is reached, the pH will be determined exclusively by: Select the correct answer below: O hydronium concentration O hydroxide concentration O conjugate base concentration O conjugate acid concentration FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
Understand how to complete titration calculations Question The end point in a titration of a 58...
Understand how to complete titration calculations Question The end point in a titration of a 58 mL sample of aqueous HCl was reached by the addition of 25 mL of 0.83 M NaOH titrant. The reaction proceeds by the following equation. HCl(aq) + NaOH(aq) NaCl(aq) + H2O(1) What is the molar concentration of HCl? • Report your answer with two significant figures. Provide your answer below: Ом - FEEDBACK FEEDBACK MORE INSTRUCTION MORE INSTRUCTION SUBMIT SUBMIT Content attribution Activity Details
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500...
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)? The Ka for HOCI is 3.0 x 10-8 M. Need help? Hint, given in general feedback. Answer: 3.96 Make ICE table and use simplified method of successive approximations (no iterations needed). How many mL of NaOH are added to reach the equivalence point? Answer: 8 What is the pH after 3.20...
PRE-LAB for pH titration of a Strong Acid with Base This is due before the lab...
PRE-LAB for pH titration of a Strong Acid with Base This is due before the lab begins, Name 1. Calculate the pH of the following solutions: (a) 1 M NaCl Does not dissociate in water to produce either hydrogen or nyot thus it is a neutral Sall, so 7. (b) 1 M HOAc (Ka - 1.8 x 10-5) duce either hydrogen or hyd xde ion, (c) 1 M NHOH (Kb = 1.8 x 10-5) (d) 0.1 M NaOAC (e) 0.1...
CollegeBoard AP Classroom Unit 8 Progress Check: MCQ - - --0-0--0-0-0-0-0--- - - - - -...
CollegeBoard AP Classroom Unit 8 Progress Check: MCQ - - --0-0--0-0-0-0-0--- - - - - - - - - - Question 12 CH,CH,COOH(aq) + H2O(1) = H,0*(aq) + CH,CH,COO() K. -1.4 x 10-st 25°C CH, CH-000 (aq) + H2O(1) = CH.CH,COOH(aq) + OH(aq) K - 7.4 x 10-st 25°C The acid equilibrium for CH,CH,COOH and the base equilibrium for CH,CH,COO" are represented above. One liter of a buffer solution with pH 4.85 is made by mixing 0.100 M CH,CH,COOH and...
Calculate the pH of a Weak Base Question The weak base dimethylamine, NH(CHs)2, has a molar...
Calculate the pH of a Weak Base Question The weak base dimethylamine, NH(CHs)2, has a molar mass of 45.09 g/mol and a base-dissociation constant K, 5.4 x 10. What is the pH of an aqueous solution of dimethylamine that contains 2.04 g of dimethylamine in 0.100 L of solution? Use pK 14.0 for the ion-product of water. Round your answer to one decimal place. Provide your answer below pi-14.0 FEEDBACK MORE INSTRUCTION Content attribution
Ch 17 Ee 12 Weak Acid/Strong Base: Example 8: An acid-base titration experiment begins with 20.0...
Ch 17 Ee 12 Weak Acid/Strong Base: Example 8: An acid-base titration experiment begins with 20.0 ml of 0.200 M HF in the flask and 0.160 M NaOH in the burer. Ka for HF-6.3 x 10-4. Draw the expected titration graph where pH is the y axis and ml of NaOH added is the x axis, Sketch and label the titration curve including WA or WB, SA or SB, salt, equivalence pt. pH at equiv pt <-, or > 7....
4. Please calculate the resulting pH when 25 mL of 0.10 M acetic acid is titrated...
4. Please calculate the resulting pH when 25 mL of 0.10 M acetic acid is titrated with 10 mL of 0.10 M NaOH (K. acetic acid = 1.8 x 10-5): CH,COOH (aq) + NaOH(aq) → CH3COONa (aq) + H20 (1)
Itsuultes Lx Give Up? Feedback Resume < Question 25 of 25 > Attempt 4 - Calculate...
Itsuultes Lx Give Up? Feedback Resume < Question 25 of 25 > Attempt 4 - Calculate the pH of the resulting solution if 30.0 mL of 0.300 M HCl(aq) is added to 40.0 mL of 0.300 M NaOH(aq). pH = 12.63 Calculate the pH of the resulting solution if 30.0 mL of 0.300 M HCl(aq) is added to 20.0 mL of 0.400 M NaOH(aq). pH = 12.16 Question Source: MRG-General Chemistry Publisher: University Science Books
10:08 9 - UEH Assignment Empirical and Molecula... Due Monday, Nov 25, 11:59pm EST - Calculate the percent composition of a compound given Questionents A 17.10 g compound is made up of 5.900 g N and 11.20 g C. What is the percent composition of nitrogen in this compound? • Your answer should have four significant figures. Provide your answer below: % MORE INSTRUCTION SUBMIT Content attribution
Calculate pH during acid base titration Question When titrating a strong acid with a strong base, after the equivalence point is reached, the pH will be determined exclusively by: Select the correct answer below: O hydronium concentration O hydroxide concentration O conjugate base concentration O conjugate acid concentration FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
Understand how to complete titration calculations Question The end point in a titration of a 58 mL sample of aqueous HCl was reached by the addition of 25 mL of 0.83 M NaOH titrant. The reaction proceeds by the following equation. HCl(aq) + NaOH(aq) NaCl(aq) + H2O(1) What is the molar concentration of HCl? • Report your answer with two significant figures. Provide your answer below: Ом - FEEDBACK FEEDBACK MORE INSTRUCTION MORE INSTRUCTION SUBMIT SUBMIT Content attribution Activity Details
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)? The Ka for HOCI is 3.0 x 10-8 M. Need help? Hint, given in general feedback. Answer: 3.96 Make ICE table and use simplified method of successive approximations (no iterations needed). How many mL of NaOH are added to reach the equivalence point? Answer: 8 What is the pH after 3.20...
PRE-LAB for pH titration of a Strong Acid with Base This is due before the lab begins, Name 1. Calculate the pH of the following solutions: (a) 1 M NaCl Does not dissociate in water to produce either hydrogen or nyot thus it is a neutral Sall, so 7. (b) 1 M HOAc (Ka - 1.8 x 10-5) duce either hydrogen or hyd xde ion, (c) 1 M NHOH (Kb = 1.8 x 10-5) (d) 0.1 M NaOAC (e) 0.1...
CollegeBoard AP Classroom Unit 8 Progress Check: MCQ - - --0-0--0-0-0-0-0--- - - - - - - - - - Question 12 CH,CH,COOH(aq) + H2O(1) = H,0*(aq) + CH,CH,COO() K. -1.4 x 10-st 25°C CH, CH-000 (aq) + H2O(1) = CH.CH,COOH(aq) + OH(aq) K - 7.4 x 10-st 25°C The acid equilibrium for CH,CH,COOH and the base equilibrium for CH,CH,COO" are represented above. One liter of a buffer solution with pH 4.85 is made by mixing 0.100 M CH,CH,COOH and...
Calculate the pH of a Weak Base Question The weak base dimethylamine, NH(CHs)2, has a molar mass of 45.09 g/mol and a base-dissociation constant K, 5.4 x 10. What is the pH of an aqueous solution of dimethylamine that contains 2.04 g of dimethylamine in 0.100 L of solution? Use pK 14.0 for the ion-product of water. Round your answer to one decimal place. Provide your answer below pi-14.0 FEEDBACK MORE INSTRUCTION Content attribution
Ch 17 Ee 12 Weak Acid/Strong Base: Example 8: An acid-base titration experiment begins with 20.0 ml of 0.200 M HF in the flask and 0.160 M NaOH in the burer. Ka for HF-6.3 x 10-4. Draw the expected titration graph where pH is the y axis and ml of NaOH added is the x axis, Sketch and label the titration curve including WA or WB, SA or SB, salt, equivalence pt. pH at equiv pt <-, or > 7....
4. Please calculate the resulting pH when 25 mL of 0.10 M acetic acid is titrated with 10 mL of 0.10 M NaOH (K. acetic acid = 1.8 x 10-5): CH,COOH (aq) + NaOH(aq) → CH3COONa (aq) + H20 (1)
Itsuultes Lx Give Up? Feedback Resume < Question 25 of 25 > Attempt 4 - Calculate the pH of the resulting solution if 30.0 mL of 0.300 M HCl(aq) is added to 40.0 mL of 0.300 M NaOH(aq). pH = 12.63 Calculate the pH of the resulting solution if 30.0 mL of 0.300 M HCl(aq) is added to 20.0 mL of 0.400 M NaOH(aq). pH = 12.16 Question Source: MRG-General Chemistry Publisher: University Science Books
Most questions answered within 3 hours.
-
Katelynn, a physician, earns $200,000 from her medical practice
in the current year. She receives $45,000...
asked 5 minutes ago -
Each row of the table below describes an aqueous solution at
25°C
.
The second column...
asked 9 minutes ago -
A horizontal wire is at y = 0. Current travels in the +x
direction. The magnetic...
asked 9 minutes ago -
Let X be a continuous random variable whose PDF is Let X be a
continuous random...
asked 31 minutes ago -
Martinez Company’s relevant range of production is 7,500 units
to 12,500 units. When it produces and...
asked 29 minutes ago -
A football with a mass of 1.2 kg is kicked from ground level to
a height...
asked 34 minutes ago -
Remember: Changes in supply determinants shift supply, and
changes in demand determinants shift demand. We say...
asked 33 minutes ago -
Why is the answer b), for this question? I came up with C) for
my incorrect...
asked 39 minutes ago -
Suppose that you know that in the population of full-time
employees in the United States, the...
asked 1 hour ago -
This experiment was designed originally to sample various meat and carcass quality
aspects of Ontario pigs...
asked 1 hour ago -
Dopamine Hydrochloride: draw the structure And Show the
functional groups in different colors and label the...
asked 53 minutes ago -
A rope supports a 10 kg dumbbell hanging from it. What is the
tension in the...
asked 53 minutes ago