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Acid-Base Chemistry
Page 6
Questions (825)
For a solution that is 0.280M HC3H5O2 (propionic acid, Ka= 1.3*10^-5) and 0.0894M HI , calculate the following:
[H3O+] [OH-]
3 answers
asked by
Saunders
1,482 views
Calculate pH, pOH, [H+], [OH-], and Ka for a 0.026 M solution of HI (a strong acid). Please help me :(
4 answers
asked by
Marie
1,086 views
Can you please tell me if these are right?
Determine the pH for the following solutions A [OH-] = 1.0 X 10^-7 M I got 7 B. [H3O+
3 answers
asked by
Jessie
527 views
Calculate the pH of 3.9 10-8 M HNO3.
2 answers
asked by
justin
696 views
A 0.010 M solution of a weak monoprotic acid has a pH of 3.70. What is the acid-ionization constant, Ka, for this acid?
a. 2.0 ยด
3 answers
asked by
zacky
1,282 views
A 500 ml buffer solution contains .2M Acetic acid and .3M sodium acetate. Find the pH of the buffer solution after adding 20 ml
3 answers
asked by
jess
1,309 views
If the concentration of H3O+ is 3.5 X 10^-3 M. What is the concentration of OH-
3 answers
asked by
John
998 views
0.100 M of NaNO2 and 0.050 HNO2.
what is the H3O of this solution? set up please.
6 answers
asked by
david.
804 views
predict the pH of the solution obtained when a 1.0 M magnesium hydroxide solution is titrated with an equal amount of a 1.0 M
4 answers
asked by
Ash
828 views
Question: A 0.400 g sample of propionic acid was dissolved in water to give 50.00 mL of solution. This solution was titrated
3 answers
asked by
Eliz
1,099 views
Posted by Rushi on Sunday, March 15, 2009 at 3:35pm.
Question.. Nicotinic acid (niacin) is a monoprotic acid with the formula
4 answers
asked by
A
525 views
Acid-Base Titrations
a) How will the concentration of NaOH be affected if during the titration some of the solid potassium
4 answers
asked by
Jake
1,530 views
a dibasic compound , B, has pkb2 = 6.00. Find the fraction in the form of BH+ at pH 9.00
3 answers
asked by
Katya
670 views
Phenolphthalein is an indicator that changes colour to pink/purple between pH 8-->10, however, neutralization occurs when pH=7.
4 answers
asked by
Lucy
1,723 views
a) Calculate the change in pH when 4.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in
6 answers
asked by
Jematormal91
6,040 views
Strong base is dissolved in 675 ml of 0.200 m weak acid (ka=3.25x10^-5) to make a buffer with a ph of 3.95. Assume that the
4 answers
asked by
Alex
3,504 views
Each of the following solutions has a concentration of 0.1 mol/L. Compare the hydronium-ion concentration and pH in each pair,
3 answers
asked by
Anonymous
1,555 views
"experiment: spectrophotometric determination of the acid dissociation constant of methyl red"
1. Why are matched cells used in
4 answers
asked by
smiley
627 views
A volume of 500.0 mL of 0.160 M NaOH is added to 625 mL of 0.250 M weak acid (๐พa=1.95ร10โ5). What is the pH
of the
1 answer
asked by
Lee
78 views
What is the conjugate acid-base in this reaction HSO3 plus water
1 answer
asked by
Akanbi
62 views
Calculate the pH of a 4.80M solution of NaOH.
I got 14.68, but is this too high? I did -log(4.8), then subtracted 14 - (-0.6812)
2 answers
asked by
j
107 views
Calculate the pH of the solution, when 50ml of 2.0HNO2(ka=4ร10^-4) titrated with 50ml of 1.0MKOH
1 answer
asked by
Kebeki
177 views
What is the pH of a 1.0 M H2SO3 solution?
(K1 = 1.2 x 10-2, and K2 = 6.6 x 10-8
1 answer
asked by
jaylord
321 views
If the OH- ion concentration in an aqueous solution at 25.0 oC is measured as 6.0 x 10โ4 M, then the pH of the solution is
2 answers
asked by
ana
463 views
Can someone solve this for me?
10.0mL of 0.10M HCl is added to a 100.0 mL of a 0.10M solution of NaCO2H (sodium formate). What is
1 answer
asked by
Rachel
217 views
If the [H+] in a solution is 1x10^-1 mol/L what is the [OH^-] ??
2 answers
asked by
Karolina
774 views
what is the pka of anhydride? i've searched the whole web and can't seem to find the pka of the functional group.
1 answer
asked by
Sara
433 views
What is [H3O+โ] (in M) in a solution of 0.078 M HBrO2 and 0.036 M NaBrO2? (Assume Kw = 1.01โโโ10^โ14.)
HBrO_2(aq) +
2 answers
asked by
Jamie
891 views
Calculate the pH of the buffer solution that would be ormed by mixing 500cm3 of 0.1mol/dm3(aq)ammonia with 500cm3 off
1 answer
asked by
Heather
420 views
Calculate the pH of 500ml 0.07M nitrous acid solution to which 1.4015 grams of sodium nitrite (KW=68.9953) are added.
1 answer
asked by
Amy
402 views
a flask containing 50ml of 0.128M sodium acetate is titrated with 0.138M nitric acid. Calculate the initial ph of the acetate
2 answers
asked by
amy
543 views
what are the basic A.A
when do protons dissociate Acid-base titration is performed, and the amino acid is found to have 3
3 answers
asked by
sg
456 views
Determine [OH-] of a solution that is 0.135 M in CO3^2-.
I got 0.00532.
2 answers
asked by
Nevaeh
896 views
If the hydroxide ion (OH-) concentration is greater than the hydronium ion (H3O+) concentration, then what is the solution?
A.
3 answers
asked anonymously
52 views
A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 ร 10-4) with 0.10 M NaOH.
A)What is the pH after
1 answer
asked by
Anonymous
455 views
You need to use KH2PO4 and K2HPO4 to prepare a buffer with a pH of 7.45. Which of the following ratios of [base]/[acid] is
3 answers
asked by
Jenny
2,077 views
, what would be the pH of a solution of 0.1 M acetic acid and 1 M sodium acetate if the pKa for acetic acid is assumed to be
1 answer
asked by
Anonymous
343 views
assume all of the ionized aspirin remains in the buffer solution and all of the un-ionized aspirin goes into to the ethyl
1 answer
asked by
Rebecca
362 views
1) How would you prepare 20 mL of a solution having pH = 2.00 by dilution of 0.10 M HCl?
2) The Ka, for hypochlorous acid, HClO,
1 answer
asked by
jess
437 views
Given a diprotic acid, H2A, with two ionization constants of Ka1 = 3.57ร 10โ4 and Ka2 = 3.14ร 10โ12, calculate the pH and
1 answer
asked by
Anonymous
588 views
The weak acid HQ has pKa of 4.89. Calculate the [H3O+] of .035 M HQ.
Thanks.
2 answers
asked by
mark
524 views
Calculate the pH of the solution after the addition of the following amounts of 0.0617 M HNO3 to a 70.0 mL solution of 0.0750 M
2 answers
asked by
Owen
1,309 views
500.0 mL of 0.120 M NaOH is added to 595 mL of 0.250 M weak acid (Ka = 2.95 ร 10-5). What is the pH of the resulting buffer?
The
5 answers
asked by
Owen
612 views
Identify the type of question. Is it a literature research question, observation only question, demonstration question, or
2 answers
asked by
Anonymous
588 views
Consider the weak organic base n-propylamine. The Kb value for this base is 1.3-10^-5, and its pKa is 10.6. At what pH are the
2 answers
asked by
Lily
549 views
Once you have calculated your Ka value, use the data to find the concentration of the unknown acids.
Vol. of acid solution=25mL
2 answers
asked by
Amber
519 views
The Kw of water varies with temperature. Calculate the pH of water at 46โ with a Kw=1.219 x 10 to the negative 14th.
3 answers
asked by
Gloria
571 views
If a solution of 0.5 M HOAc dissociates as follows: HOAc + H2O โยฎ H3O+ + OAc-, what is the final [H3O+] in the solution? Ka
2 answers
asked by
Nicole
774 views
pH: 4.9 Calculate:
H3O H30= 10^-pH H3O=10^-4.9 H30=1.25 * 10^-4 AND CALCULATE OH=14-pH OH=14-4.9 OH= 9.1
2 answers
asked by
Clare
592 views
Sorry, I did make an error when I posted the earlier question:
It should have said: A solution has [OH-] = 2.0 x 10-^14 M. The
2 answers
asked by
Cassandra
506 views
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