Questions LLC
Login
or
Sign Up
Ask a New Question
Acid-Base Equilibrium
Page 4
Questions (295)
please tell me if i am correct
a buffer is made using HF and NaF-with a pH of 3.00. compute the ratio of the conjugate base F- to
2 answers
asked by
quentin
577 views
Consider a cell based on the following reaction:
GeO(s) + H2O(l) + 2 Ag+(aq) ===> GeO2(s) + 2 H+(aq) + 2 Ag(s) If [Ag+] = 1 M, at
2 answers
asked by
Sarah H
924 views
How many ml of 0.8M KOH should be added to 5.02g of 1,5 pentatonic acid (H2A) Mwt= 132.11 to give a pH of 4.4 when diluted to
1 answer
asked by
christina
447 views
The total Carbon dioxide content (HCO3- + CO2) in a blood sample is determined by acidifiying the sample and measuring the
2 answers
asked by
christina
813 views
A 9.00 M solution of a weak acid, HA, has a pH of 1.30
1.) calculate [A-] at equilibrium 2.) calculate [HA] at equilibrium Use pH
1 answer
asked by
Jaron
338 views
The concentration of hydroxide ions in the antacid, milk of magnesia, is 5.2x10^-4 M. Calculate the concentration of hydronium
4 answers
asked by
Jeanne
2,034 views
Assume that the normal blood buffer contains 0.00080 M carbonic acid and 0.0085 M hydrogen carbonate, the pKa = 6.35 for
3 answers
asked by
Natalie
1,872 views
The ionization constant Ka of an indicator HIn is 1.0x10^-6. The color of the nonionized form is red and that of the ionized
3 answers
asked by
Taylor
1,878 views
Calculate the concentration of oxalate ion (C2O42−) in a 0.175 M solution of oxalic acid (C2H2O4).
[For oxalic acid, Ka1 = 6.5
3 answers
asked by
sarah
1,694 views
The acid-dissociation constant, Ka, for gallic acid is 4.57 × 10-3. What is the base-dissociation constant, Kb, for gallate
3 answers
asked by
jessica
1,516 views
Consider the diprotic acid H2A with K1 =1.00 X 10-4
and K2 = 1.00 X 10-8 . Find the pH and concentrations of H2A, HA- , and A2-
3 answers
asked by
mmm
1,506 views
Determine the [OH^-] of a solution that is 0.145 M in CO3^2-.
3 answers
asked by
nurul
1,425 views
find the concentrations of H+, HCO3-, CO3 2- in a 0.025M in H2CO3 solutions
4 answers
asked by
ADAM
1,431 views
a weak acid has a pKa of 6.0. what is the ratio of conjugate acid to conjugate base at pH 5?
3 answers
asked by
kabelo
1,380 views
A 0.942 M sample of carbonic acid, H2CO3, has a measured hydronium ion concentration of 6.36 ´ 10–4 M. Calculate the
4 answers
asked by
Lily
1,371 views
calculate oh- and ph in a solution in which dihydrogen phosphate ion is 0.335 M and hydrogen phosphate is 0.335 M.
This is a
4 answers
asked by
Jessica
1,327 views
What is the equilibrium concentration of chloroacetic acid in a solution prepared by dissolving 0.0314 mil of chloroacetic acid
2 answers
asked by
Chemistry
1,322 views
The Ka value for HCN is 4.9x10^-10. What is the value of Kb for CN-?
2 answers
asked by
mary
1,305 views
1.) What must be the molarity of an aqueous solution of trimethylamine (CH3)3N
if it has a Ph of 11.04? Kb = 6.3*10^-5 if someone
2 answers
asked by
anonymous
1,236 views
consider the following equilibrium:
Mg(OH)2(aq) <-> Mg2+ (aq) + 2OH-(aq) a) what would happen to the equilibrium if some acid is
2 answers
asked by
Ashlee
1,225 views
What is the percent ionization of a 1.38 mol/L weak acid if its Ka = 2.7 x 10^-6?
Thanks again!
2 answers
asked by
Amandeep
1,199 views
Calculate the concentrations of all species in a 0.810 M Na2SO3 (sodium sulfite) solution. The ionization constants for
6 answers
asked by
Katherine
1,215 views
The Ka value for ethanoic acid is 1.8x10^-5, what would be the pH of a 2.0x10^-2 M solution of ethanoic acid?
2 answers
asked by
Rachael
1,188 views
Calculate the pH of a solution in which
a. [H3O+] = 7.8 x 10-7 M pH = b. [H3O+] = 5.1 x 10-6 M pH = c. [H3O+] = 6.1 x 10-5 M pH =
1 answer
asked by
Danny
1,202 views
A 0.150 M solution of nitrous acid (HNO2) is made. Ka = 4.5 x 10-4
1. Show the equilibrium which occurs when this acid is
2 answers
asked by
Tiri
1,197 views
what is the hydronium-ion concentration at equilibrium in a 0.71 M solution of aniline (Kb=4.2x10^-10) at 25 Celsius
2 answers
asked by
Che
1,149 views
Calculate the H3O+ concentration present in water under the following conditions. Enter your answer in scientific notation.
a.
2 answers
asked by
Danny
1,106 views
A) Calculate the pH of a buffer system that is 0.06 M HNO2 and 0.160 M NaNO2
B) What is the pH after 2.00 M NaOH are added to
3 answers
asked by
lou
1,090 views
An equilibrium mixture of propanoic acid, CH3CH2COOH and its conjugate base has a pH of 4.87. What form predominates after H3O+
2 answers
asked by
Ada
1,107 views
The pH of a 0.10-M solution of caffeine is 11.16. Determine Kb for caffeine from these data:
C8H10N4O2(aq)+H2O(l) ⇌
2 answers
asked by
Anonymous
1,091 views
Sodium carbonate (kc = 3.67 *10^-3) is a weak base that can react with two moles of water according to the following
2 answers
asked by
Cal21
1,075 views
An indicator has the reaction
HIn(aq)<-->+In-(aq). Explain how the indicator can change color when a strong acid is poured into a
1 answer
asked by
Chrissy
1,089 views
0.10 M solution of a weak monoprotic acid has a hydronium-ion concentration of 5.0 * 10^-4 M. What is the equilibrium constant,
2 answers
asked by
wite2khin
1,063 views
When 23.3 mL of 0.14 M HCl are added to 50.0 mL of a 0.16 M solution of a weak monoprotic base, the pH of the solution is 10.50.
3 answers
asked by
Chris
1,037 views
Calculate the [H+], [OH ‾ ], and the pH of 0.16 M solutions of:
hydroxylamine (HONH2, Kb = 1.1 10-8)
2 answers
asked by
Chris
976 views
What is the hydronium ion concentration in a 0.010M solution of carbonic acid, H2CO3? For carbonic acid, Ka1=4.2x10^-7 and
5 answers
asked by
C
1,008 views
A reaction mixture is in a 5.4 L flask at 25 oC initially contains only 7.64 grams of acetic acid. (CH3COOH). Set up your I.C.E.
2 answers
asked by
juan
987 views
Calculate the concentration of all species in a 0.15 M KF solution. Ka = 6.4 x 10-4 for HF.
4 answers
asked by
Brian
989 views
A lactic acid/lactate ion buffer solution contains 0.19 M HC3H5O3 and 0.78 M C3H5O3-, respectively. The Ka value of lactic acid
3 answers
asked by
Lynne
998 views
For the diprotic weak acid H2A, Ka1 = 2.2 × 10-5 M and Ka2 = 7.8 × 10-7 M. What is the pH of a 0.0650 M solution of H2A? What
2 answers
asked by
Homework help
981 views
Find the [H3O+] in a solution having [OH-] = 8.8x10^-2 M
[H3O+]x[OH-]=1x10^-14 [H3O+]x[8.8x10^-2]=1x10^-14 i am almost sure i am
2 answers
asked by
Home schooled
989 views
What is the percent dissociation of ascorbic acid if the solution has a pH = 5.50 and a pKa= 4.10?
The answer is 96% but I keep
2 answers
asked by
Brittany Spears
923 views
A solution of acetic acid, 1.0 mol L–1 CH3COOH, contains sodium acetate, NaCH3COO. The percent ionization of the above
3 answers
asked by
luis
989 views
Write the equation for the equilibrium that exists when nitrous acid and sodium acetate are placed in solution together (do not
2 answers
asked by
chamy
939 views
a) Calculate [H3O^+] in a 0.15M solution of benzonic acid, HC7H5O2(aq) having K of 6.4x10^-5.
b) Calculate the per cent
2 answers
asked by
Sarah
903 views
Calculate the [H⁺] for the aqueous solution in which [OH⁻] is 1 x 10⁻⁹. Is this solution acidic, basic or neutral? Show
2 answers
asked by
mary
841 views
'What is the pH of 0.083 M C5H5N if the Kb value for C5H5N is 2.9 x 10^-9?'
I wrote the equation as C5H5N + H2O --> C5H6N^+ +
2 answers
asked by
SarahF275
840 views
What is the hydronium ion concentration in a solution 0.150M in HNO2 and 0.300M in NaNO2? Ka = 7.24E-4
3 answers
asked by
Alexis
833 views
HA(aq)+ H2O (l) <-> H3O+(aq)+ A¯ (aq)
Given the reaction above, which of the following will cause an increase in the pH of an
2 answers
asked by
Michael
815 views
A monoprotic acid with a Ka of 2.92 × 10-5 has a partition coefficient of 4.2 (favoring octanol) when distributed between water
1 answer
asked by
Avery
856 views
Pages
1
2
3
4
5
6
Parent Categories (28)
Acids and Bases
Aqueous Solutions
Biochemistry
Chemical Equations
Chemical Equations Balancing
Chemical Equilibrium
Chemical Reactions
Chemical Reactions and Equilibrium
Chemical Reactions/Equilibrium
Chemical Solutions
Chemistry
Equilibrium
Equilibrium Chemistry
Equilibrium Constants
Equilibrium Reactions
Organic Chemistry
Physical Chemistry
Reaction Equations
Solution
Solution Calculations
Solution Chemistry
Solution Concentration
Solutions
Solutions and Acids/Bases
Solutions and Concentrations
Solutions and Equilibrium
Stoichiometry
Thermodynamics