Homework Answers
![orwenk acioKco as weak acid) EMso1-CoC danbciathen KaxC EMo]- JKex 1 Dota2x10 = 0.848 x/2 CMaoJ8.503 So Option B anwer](http://img.homeworklib.com/questions/8b533110-727e-11ea-8f66-871d88dd76f6.png?x-oss-process=image/resize,w_560)
Add Answer to:
d) OH e) H2O2 Formic acid, which is a component of insect venom lhe + venom...
4) The venom of stinging ants contains formic acid (Ka = 1.8 x 10-4). Calculate the...
4) The venom of stinging ants contains formic acid (Ka = 1.8 x 10-4). Calculate the pH of a 0.25 M solution of formic acid.
21. Ant venom contains formic acid ("formica" is Latin word for ant. Suppose you are working...
21. Ant venom contains formic acid ("formica" is Latin word for ant. Suppose you are working at a pharmaceutical company trying to develop a quick antidote. As pant ot your research program, you need to titrate a solution of formic acid with sodium hyk oxide solution and have started to think about what to expect. Calculate the ph ot the seution after adding the following amounts of 0250 M NaOH to 25.00 ml of 0.100 M tormic acis (Ka for...
Calculate the pH of a 0.300 M solution of formic acid, for which the Ka value...
Calculate the pH of a 0.300 M solution of formic acid, for which the Ka value is 1.80 x 10-4. A. 2.13 B. 11.87 C.5.39 D. 8.61 E. 7.35 x 10-3
A solution is prepared by dissolving 0.23 mol of formic acid and 0.27 mol of sodium...
A solution is prepared by dissolving 0.23 mol of formic acid and 0.27 mol of sodium formate in water sufficient to yield 1.00 L of solution. The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the present in the buffer solution. The K, of formic acid is 1.8 x 10+ A formic acid B. sodium formate C water D. sodium E....
Which one is a polyprotic acid in aqueous solution? A: Li(OH)2 B: HClO4 C: H2O2 D:...
Which one is a polyprotic acid in aqueous solution? A: Li(OH)2 B: HClO4 C: H2O2 D: H2SO4 Please explain "polyprotic acid"
Using Henderson-Hasselbalch equation, Calculate the pH of a buffer solution that is 0.060 M formic acid...
Using Henderson-Hasselbalch equation, Calculate the pH of a buffer solution that is 0.060 M formic acid (HCHO2) and 0.150 M potassium formate (KCHO2). Remember that Ka = 1.8 X 10-4 for formic acid. Group of answer choices A 1.45 B 2.36 C.9.12 D.4.13 E. 0.0125 F. 7.00
12. Given that Ka = 1.8 x 10- for acetic acid. in order for an acetic...
12. Given that Ka = 1.8 x 10- for acetic acid. in order for an acetic acid solution to have a pH of 3.50, its molar concentration must be a. 5.7 x 10-3 M b. 5.6 x 10-3M c. 3.2 x 10-4M d. 2.3 x 10-M 13. If enough base is added to a solution to cause the pH to increase from 7.50 to 8.50, this means that А a. [OH-] increases by a factor of 10 b. [H'] increases...
parts d and e please Assume that you dissolve 0.235 g of the weak acid benzoic...
parts d and e please
Assume that you dissolve 0.235 g of the weak acid benzoic acid, C.H.COOH, in enough water to make 1.00×10 mL of solution and then titrate the solution with 0.108 M NaOH. Benzoic acid is a monoprotic acid. Ka = 6.3x10-5 1. What is the pH of the original benzoic acid solution before the titration is started? pH= 2.96 A. How many moles of acid do you have? _1.9x108__moles B. What is the initial molarity of...
8. Classify each of the following reactions as (a) Arrhenius, (b) Brønsted-Lowry, ) Lewis, or (d) none acid-base re...
8. Classify each of the following reactions as (a) Arrhenius, (b) Brønsted-Lowry, ) Lewis, or (d) none acid-base reactions (a). (d) (b) (c) NH4+ a. Ag + 2NH3 b. H2SO4 + NH3 c. 2 HCl = d. AlCl3 + CT Ag(NH3)2 HSO4 + Cl2 AlCl4- H2 + 9. Of the following characteristics, the one(s) which is(are) not a characteristic of Brønsted- Lowry bases is(are) that such bases a. often taste bitter b. always contain hydroxyl ions c. form hydroxyl ions...
D) An electron pair acceptor. E) An anphoteric species Q/33) A Lewis acid is? A)A proton...
D) An electron pair acceptor. E) An anphoteric species Q/33) A Lewis acid is? A)A proton donor B)A proton acceptor. C) An electron pair donor D) An electron pair acceptor E) An anphoteric species. Q(34) A Brønsted-Lowry acid is? A) A proton donor D) An electron pair acceptor. B)A proton acceptor. C) An electron pair donor E) An anphoteric species. Q(35) What is the relationship between Ka and Ko for a conjugate acid base pair? A) Kw=Ka+Kb B) Kw=Ka*Kb C)...
4) The venom of stinging ants contains formic acid (Ka = 1.8 x 10-4). Calculate the pH of a 0.25 M solution of formic acid.
21. Ant venom contains formic acid ("formica" is Latin word for ant. Suppose you are working at a pharmaceutical company trying to develop a quick antidote. As pant ot your research program, you need to titrate a solution of formic acid with sodium hyk oxide solution and have started to think about what to expect. Calculate the ph ot the seution after adding the following amounts of 0250 M NaOH to 25.00 ml of 0.100 M tormic acis (Ka for...
Calculate the pH of a 0.300 M solution of formic acid, for which the Ka value is 1.80 x 10-4. A. 2.13 B. 11.87 C.5.39 D. 8.61 E. 7.35 x 10-3
A solution is prepared by dissolving 0.23 mol of formic acid and 0.27 mol of sodium formate in water sufficient to yield 1.00 L of solution. The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the present in the buffer solution. The K, of formic acid is 1.8 x 10+ A formic acid B. sodium formate C water D. sodium E....
12. Given that Ka = 1.8 x 10- for acetic acid. in order for an acetic acid solution to have a pH of 3.50, its molar concentration must be a. 5.7 x 10-3 M b. 5.6 x 10-3M c. 3.2 x 10-4M d. 2.3 x 10-M 13. If enough base is added to a solution to cause the pH to increase from 7.50 to 8.50, this means that А a. [OH-] increases by a factor of 10 b. [H'] increases...
parts d and e please
Assume that you dissolve 0.235 g of the weak acid benzoic acid, C.H.COOH, in enough water to make 1.00×10 mL of solution and then titrate the solution with 0.108 M NaOH. Benzoic acid is a monoprotic acid. Ka = 6.3x10-5 1. What is the pH of the original benzoic acid solution before the titration is started? pH= 2.96 A. How many moles of acid do you have? _1.9x108__moles B. What is the initial molarity of...
8. Classify each of the following reactions as (a) Arrhenius, (b) Brønsted-Lowry, ) Lewis, or (d) none acid-base reactions (a). (d) (b) (c) NH4+ a. Ag + 2NH3 b. H2SO4 + NH3 c. 2 HCl = d. AlCl3 + CT Ag(NH3)2 HSO4 + Cl2 AlCl4- H2 + 9. Of the following characteristics, the one(s) which is(are) not a characteristic of Brønsted- Lowry bases is(are) that such bases a. often taste bitter b. always contain hydroxyl ions c. form hydroxyl ions...
D) An electron pair acceptor. E) An anphoteric species Q/33) A Lewis acid is? A)A proton donor B)A proton acceptor. C) An electron pair donor D) An electron pair acceptor E) An anphoteric species. Q(34) A Brønsted-Lowry acid is? A) A proton donor D) An electron pair acceptor. B)A proton acceptor. C) An electron pair donor E) An anphoteric species. Q(35) What is the relationship between Ka and Ko for a conjugate acid base pair? A) Kw=Ka+Kb B) Kw=Ka*Kb C)...
Most questions answered within 3 hours.
-
Why is a personal interview the most important step in the sales
selection process? What are...
asked 3 minutes ago -
In Python rOverlap (x1, y1, w1, h1, x2, y2, w2, h2) A rectangle
is axis-aligned if...
asked 3 minutes ago -
If we observe in a protein solution that DNA is causing a
mixture 260/280 ratio ~0.9,...
asked 13 minutes ago -
Explain the steps involved in making cDNA from mRNA, and how you
would create a cDNA...
asked 13 minutes ago -
A beta (β) particle is described by which of the following?
Select the correct answer below:...
asked 16 minutes ago -
A new machine costs $150,000, lasts 10 years, has an annual
O&M cost of $50,000, and...
asked 19 minutes ago -
A newspaper in a large Midwestern city reported that the
National Association of Realtors said that...
asked 21 minutes ago -
1. Develop a use case diagram for the bank case study described
in Chapter 1. 2....
asked 31 minutes ago -
The phylum Protista has often been referred to as a junk drawer
of classification. Explain what...
asked 38 minutes ago -
The average amount of money spent for lunch per person in the
college cafeteria is $7.09...
asked 40 minutes ago -
You follow the lab procedure and at the end of Part 4C, you used
an average...
asked 59 minutes ago -
Write 250-450 words, about the following: • Analyze how a
servant leader in your organization or...
asked 1 hour ago