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![be the best Combination for NaH₂PO4 | Na₂HPO4 will making the buffer pH - ENGHRO] = pka + log I Hahapo4] oo Handerson- Hassel](http://img.homeworklib.com/questions/c784fb40-77cc-11ea-8381-2b5ca466b55d.png?x-oss-process=image/resize,w_560)
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Please answer both questions.
24. Calculate the percent ionization for a 0.0240 M hypochlorous acid solution....
Nicotine is a weak base (C10H14N2, Kb= 1.0×10^-6. A researcher prepares a solution containing 0.300 M...
Nicotine is a weak base (C10H14N2, Kb= 1.0×10^-6. A
researcher prepares a solution containing 0.300 M nicotine and
0.050 M NaOH. Determine the concentration of monoprotinated
nicotine, (C10H14N2H+, the conjugate acid) in the solution.
25. Nicotine is a weak base (C10H14N2, Kb = 1.0x10). A researcher prepares a solution containing 0.300 M nicotine and 0.050 M NaOH. Determine the concentration of monoprotonated nicotine, (C10H24N2H, the conjugate acid) in the solution. 26. A buffer is diluted to 25% of its initial...
Please answer both 24 & 27 22. Calculate the pH of a 0.0120 M lactic acid...
Please answer both 24 & 27
22. Calculate the pH of a 0.0120 M lactic acid solution. HC3H5O3, K = 1.36x10 23. Find the pH of 0.388 M lithium butanoate solution, LIC,H,O,(aq). Butanoic acid Kg = 1.52x10° 24. Calculate the percent ionization for a 0.0240 M hypochlorous acid solution. The K, for hypochlorous acid is 3.4x10 25. Nicotine is a weak base (C10H24N2, Kb = 1.0x10'). A researcher prepares a solution containing 0.300 M nicotine and 0.050 M NaOH. Determine...
Calculate the pH of a 0.410 M aqueous solution of hypochlorous acid (Hcio, Ka -3.5x10). pH...
Calculate the pH of a 0.410 M aqueous solution of hypochlorous acid (Hcio, Ka -3.5x10). pH =
(a) Calculate the percent ionization of 0.00660 M acetic acid (Ka = 1.8e-05). % ionization =...
(a) Calculate the percent ionization of 0.00660 M acetic acid (Ka = 1.8e-05). % ionization = % (b) Calculate the percent ionization of 0.00660 M acetic acid in a solution containing 0.0220 M sodium acetate. % ionization = % + -10.1 points 0/4 Submissions Used A buffer solution contains 0.70 mol of hydrogen peroxide (HOOH) and 0.87 mol of sodium hydrogen peroxide (NaOH) in 5.80 L. The Ka of hydrogen peroxide (HOOH) is ka = 2.4e-12. (a) What is the...
-/0.1 points 33 0/4 Submissions Used (a) Calculate the percent ionization of 0.00720 M carbonic acid...
-/0.1 points 33 0/4 Submissions Used (a) Calculate the percent ionization of 0.00720 M carbonic acid (Ka = 4.3e-07). % ionization = % (b) Calculate the percent ionization of 0.00720 M carbonic acid in a solution containing 0.0470 M sodium hydrogen carbonate. % % ionization = Submit Answer + -/0.1 points 34. 0/4 Submissions Used A buffer solution contains 0.76 mol of propionic acid (HC3H502) and 0.30 mol of sodium propionate (NaC3H502) in 7.30 L The Ka of propionic acid...
ANALYTICAL CHEMISTRY - PLEASE I NEED HELP ASAP! (Use significant figures and scientific notation) Part A...
ANALYTICAL CHEMISTRY - PLEASE I NEED HELP ASAP!
(Use significant figures and scientific
notation)
Part A An aqueous weak acid HA with a
pK=4.00
is created at 0.10 M. What is the percent ionization of this acid
to the nearest tenth of a percent?
Part B A buffer was made by mixing 10mL of
0.40M sodium dihydrogen phosphate (NaHPO)
with 10mL of 0.40 M sodium hydrogen phosphate (NaHPO).
What is the pH after 20.0mL of 0.010M NaOH is added to...
please show work :) 7. You need to make a buffer to keep a solution at...
please show work :)
7. You need to make a buffer to keep a solution at a pH of 2.50. You have several combinations of weak acids and their conjugate bases to choose from. 1. Chloroacetic acid (K4 = 1.40 x 103) and sodium chloroacetate 2. Formic acid (Ka = 1.77 x 10-4) and sodium formate 3. Iodic acid (Ka = 1.60 x 10-1) and sodium iodate 4. Phosphoric acid (K. = 7.52 x 10-3) and sodium phosphate 5. Propionic...
if you need a value of Ka, you should use this table: An aqueous solution contains...
if you need a value of Ka, you should use this table:
An aqueous solution contains 0.390 M hydrofluoric acid. How many mL of 0.200 M sodium hydroxide would have to be added to 250 mL of this solution in order to prepare a buffer with a pH of 3.050? mL Ferric ion Fe(H20)63+ 4.0x10-3 Formic acid HCOOH 1.8x10-4 Hydrocyanic acid HCN 4.0x10-10 Hydrofluoric acid HF 7.2x10-4 2.4x10-12 Hydrogen peroxide H202 Hydrosulfuric acid H2S 1.0x10-7 1.0x10-19 Hypochlorous acid HCIO 3.5x10-8...
please answer every part part 1 part 2 A buffer solution contains 0.90 mol of hydrocyanic...
please answer every part
part 1
part 2
A buffer solution contains 0.90 mol of hydrocyanic acid (HCN) and 0.77 mol of sodium cyanide (NaCN) in 3.80 L. The K, of hydrocyanic acid (HCN) is k, = 4.9e-10. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.31 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after...
questions 9,10 and 11 please! thank you lying 0.23 mol of hypochlorous acid and 0.27 mol...
questions 9,10 and 11 please! thank you
lying 0.23 mol of hypochlorous acid and 0.27 mol of sodium fent to yield 1.00 L of solution. The addition of 0.05 mol of NaOH to this to increase slightly. The pH does not increase drastically because the present in the buffer solution. The Ka of hypochlorous acid is A solution is prepared by dissolu hupachlorite in water sufficien buffer solution causes the pH toinen NaOH reacts with the 30.10-8 Ohypochlorous acid B)...
Nicotine is a weak base (C10H14N2, Kb= 1.0×10^-6. A
researcher prepares a solution containing 0.300 M nicotine and
0.050 M NaOH. Determine the concentration of monoprotinated
nicotine, (C10H14N2H+, the conjugate acid) in the solution.
25. Nicotine is a weak base (C10H14N2, Kb = 1.0x10). A researcher prepares a solution containing 0.300 M nicotine and 0.050 M NaOH. Determine the concentration of monoprotonated nicotine, (C10H24N2H, the conjugate acid) in the solution. 26. A buffer is diluted to 25% of its initial...
Please answer both 24 & 27
22. Calculate the pH of a 0.0120 M lactic acid solution. HC3H5O3, K = 1.36x10 23. Find the pH of 0.388 M lithium butanoate solution, LIC,H,O,(aq). Butanoic acid Kg = 1.52x10° 24. Calculate the percent ionization for a 0.0240 M hypochlorous acid solution. The K, for hypochlorous acid is 3.4x10 25. Nicotine is a weak base (C10H24N2, Kb = 1.0x10'). A researcher prepares a solution containing 0.300 M nicotine and 0.050 M NaOH. Determine...
Calculate the pH of a 0.410 M aqueous solution of hypochlorous acid (Hcio, Ka -3.5x10). pH =
(a) Calculate the percent ionization of 0.00660 M acetic acid (Ka = 1.8e-05). % ionization = % (b) Calculate the percent ionization of 0.00660 M acetic acid in a solution containing 0.0220 M sodium acetate. % ionization = % + -10.1 points 0/4 Submissions Used A buffer solution contains 0.70 mol of hydrogen peroxide (HOOH) and 0.87 mol of sodium hydrogen peroxide (NaOH) in 5.80 L. The Ka of hydrogen peroxide (HOOH) is ka = 2.4e-12. (a) What is the...
-/0.1 points 33 0/4 Submissions Used (a) Calculate the percent ionization of 0.00720 M carbonic acid (Ka = 4.3e-07). % ionization = % (b) Calculate the percent ionization of 0.00720 M carbonic acid in a solution containing 0.0470 M sodium hydrogen carbonate. % % ionization = Submit Answer + -/0.1 points 34. 0/4 Submissions Used A buffer solution contains 0.76 mol of propionic acid (HC3H502) and 0.30 mol of sodium propionate (NaC3H502) in 7.30 L The Ka of propionic acid...
ANALYTICAL CHEMISTRY - PLEASE I NEED HELP ASAP!
(Use significant figures and scientific
notation)
Part A An aqueous weak acid HA with a
pK=4.00
is created at 0.10 M. What is the percent ionization of this acid
to the nearest tenth of a percent?
Part B A buffer was made by mixing 10mL of
0.40M sodium dihydrogen phosphate (NaHPO)
with 10mL of 0.40 M sodium hydrogen phosphate (NaHPO).
What is the pH after 20.0mL of 0.010M NaOH is added to...
please show work :)
7. You need to make a buffer to keep a solution at a pH of 2.50. You have several combinations of weak acids and their conjugate bases to choose from. 1. Chloroacetic acid (K4 = 1.40 x 103) and sodium chloroacetate 2. Formic acid (Ka = 1.77 x 10-4) and sodium formate 3. Iodic acid (Ka = 1.60 x 10-1) and sodium iodate 4. Phosphoric acid (K. = 7.52 x 10-3) and sodium phosphate 5. Propionic...
if you need a value of Ka, you should use this table:
An aqueous solution contains 0.390 M hydrofluoric acid. How many mL of 0.200 M sodium hydroxide would have to be added to 250 mL of this solution in order to prepare a buffer with a pH of 3.050? mL Ferric ion Fe(H20)63+ 4.0x10-3 Formic acid HCOOH 1.8x10-4 Hydrocyanic acid HCN 4.0x10-10 Hydrofluoric acid HF 7.2x10-4 2.4x10-12 Hydrogen peroxide H202 Hydrosulfuric acid H2S 1.0x10-7 1.0x10-19 Hypochlorous acid HCIO 3.5x10-8...
please answer every part
part 1
part 2
A buffer solution contains 0.90 mol of hydrocyanic acid (HCN) and 0.77 mol of sodium cyanide (NaCN) in 3.80 L. The K, of hydrocyanic acid (HCN) is k, = 4.9e-10. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.31 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after...
questions 9,10 and 11 please! thank you
lying 0.23 mol of hypochlorous acid and 0.27 mol of sodium fent to yield 1.00 L of solution. The addition of 0.05 mol of NaOH to this to increase slightly. The pH does not increase drastically because the present in the buffer solution. The Ka of hypochlorous acid is A solution is prepared by dissolu hupachlorite in water sufficien buffer solution causes the pH toinen NaOH reacts with the 30.10-8 Ohypochlorous acid B)...
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