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Acid-Base Equilibrium
Page 5
Questions (295)
I posted a question earlier that I was having trouble with, but I was unable to attempt to try it again for several days after
1 answer
asked by
James
822 views
Can someone help me I need to find out how to solve the following equation
What is the PH/POH of a .0727m H3O+ Solution at 25
2 answers
asked by
Help
802 views
If HOCl has a Ka=3.2*10^-12, what is the pH of 0.1M KOCl?
2 answers
asked by
Dave
795 views
Calculate [H3O ], [ClO4–], and [OH–] in an aqueous solution that is 0.130 M in HClO4(aq) at 25 °C.
[H+]= [ClO4-]= [OH-]=
2 answers
asked by
Sevy
798 views
Calculate the [H3O+] of each of the following H2SO4 solutions.
For a 0.50 M soln How do I reach the answer? Do I have to use a
4 answers
asked by
Anonymous
776 views
A buffer consists of 0.14 M KHCO3 and 0.61 M K2CO3. Carbonic acid is a dirpotic acid with Ka1= 4.5*10^-7 and Ka2= 4.7*10^-11.
a)
2 answers
asked by
Justine
775 views
What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.83 at 25 Celsius? Ka
2 answers
asked by
Viv
779 views
sorry . Can you please help me with this questions If you know?
Oxalic acid is a relatively strong diprotic acid with Ka1 = 5.6
1 answer
asked by
khin
800 views
A 0.25 mol/L solution of benzoic acid, KC7H5O2 and antiseptic also used as a food preservative, has a pH of 2.40. Calculate the
2 answers
asked by
Geroge B.
767 views
You are instructed to create 500. mL of a 0.25 M phosphate buffer with a pH of 7.7. You have phosphoric acid and the sodium
2 answers
asked by
Sarah
755 views
Determine the [H+] when [OH-] is 2.0 times 10^-2 mole.dm-3.
2 answers
asked by
Shane
716 views
the pH of a solution of HIO3 (Ka=1.7x10^-1) and KIO3 is 1.00. what is the molarity of KIO3 if the molarity of HIO3 is 0.025 M?
2 answers
asked by
sarah
739 views
URGENT!!! How many grams of sodium benzoate (NaC6H5CO2) must be added to 500 mL of 0.15 M benzoic acid (HC6H5CO2) to make a
2 answers
asked by
Rainbow
757 views
What is the concentration of CO3^-2 in a 0.028M solution of carbonic acid, H2CO3? For carbonic acid, Ka1=4.2x10^-7 and
5 answers
asked by
B
741 views
Given that the pKa for Acetic Acid is 4.77, calculate the expected pH of the buffer solutions using the Henderson-Hasselbalch
3 answers
asked by
M_Joe
729 views
What are the equilibrium concentrations of H+,OH- ,(HSO3)-, (SO3)2- and Na+ in the solution that results from combining 50.0 mL
2 answers
asked by
alexis
702 views
The Ka for the reaction of acetic acid and water is 1.8 x 10-5.
Which of the following statements is true at pH 7? A.) there is
2 answers
asked by
Kristin
707 views
A 0.108 M sample of a weak acid is 4.16% ionized in solution. what is the hydroxide concentration of this solution?
I know that i
2 answers
asked by
Anonymous
694 views
enough of a monoprotic acid is dissolved in water to produce a 0.0111M solution. The pH of the resulting solution is 2.62.
2 answers
asked by
airo
671 views
Ammonia, NH3 is freely soluble in water, and has the value Kb=1.8x10^-5. If the pH of an ammonia solution is 11.4272, then what
3 answers
asked by
Sam
684 views
A student titrates 0.025 M KOH into 50.00 ml of a solution of unknown weak acid HA. Equivalence point is reached when 30.00 ml
2 answers
asked by
Patrick
687 views
A 0.035 M solution of a weak base has a pH of 10.88. What is the Kb for the acid?
Where Di I even begun**???
2 answers
asked by
L.Bianchessi
664 views
The Ksp for a certain metal hydroxide, M(OH)2 (molar mass = 127) is 3.5 × 10-19. What is the pH for a saturated solution of
3 answers
asked by
Dan
645 views
A buffer solution is made by dissolving 0.45
moles of a weak acid (HA) and 0.13 moles of KOH into 760 mL of solution. What is the
2 answers
asked by
kc
658 views
A solution is prepared by adding 47.3 mL of concentrated hydrochloric acid and 16.3 mL of concentrated nitric acid to 300 mL of
3 answers
asked by
Andrew
645 views
I have no clue, please help and explain! =)
Find the pH of a 0.150 M solution of a weak monoprotic acid having Ka=1.2×10−5.
3 answers
asked by
Lisa, Help needed!
647 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
D.C.
657 views
Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the
2 answers
asked by
Anonymous
635 views
What is the pH of the solution if 0.015 mol of HCl is added to a buffer containing 0.014 mol of RCOOH and 0.033 mol of RCOONa
2 answers
asked by
Lynn
641 views
Suppose that 85 mL of 0.4 M NaF and 50 mL of 0.4 M HCl are mixed.
What is the K for the dominant equilibrium in terms of Ka's,
2 answers
asked by
Sarah
636 views
Thanks to Dr. Bob for answering all these questions!
I always do poorly on conceptual problems. Consider the following
2 answers
asked by
Richard
644 views
Oxalic acid , HOOCCOOH (aq) , is a diprotic acid with Ka1= 0.0560 and Ka2=0.0145. Determine the [-OOCCOO-] in a solution with an
2 answers
asked by
Amanda
612 views
Hi DrBob222,
this is regarding my Determining Ka of Acetic acid lab I talked about on April 5, 2008. Refer to the volume of NaOH
3 answers
asked by
Sarah
623 views
Four sets of conjugate acid/base pairs and Ka of the acid are given. Which pair would be the best to form a buffer at pH = 9.2?
4 answers
asked by
Kristin
618 views
Given a diprotic acid, H2A, with two ionization constants of Ka1 = 4.5× 10–2 and Ka2 = 5.2× 10–7.
Calculate the pH and
1 answer
asked by
amanda1012
622 views
so i got a test and like usual my teacher didn't teach me half of the stuff that's going to be on it so he gave us a pretest of
2 answers
asked by
Chemistry
612 views
If K = 1.8 x 10 for HC2H3O (aq) <=> H+(aq)+C2H3O2-(aq), and 100 mL of aqueous solution has [HC2H3O2] = 0.50 M, [H+] = 0.090 M,
2 answers
asked by
alexis
615 views
Calculate the [H+] in a solution containing 1.00 M hydroflouris acid (Ka=7.2 x 10^-4) and .50 M sodium fluoride
2 answers
asked by
Hannah
582 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
D.C.
593 views
How do I predict whether the equilibrium lies to the right or left of an Acid-base equation?
2 answers
asked by
Ana
584 views
I don't understand ice table at all..can anyone please guide me in how to solve the following question? :
The pH of a 0.00250
4 answers
asked by
Jessica
604 views
A buffer containing 1.2169 M of acid, HA, and 0.1431 M of its conjugate base, A-, has a pH of 3.96. What is the pH after 0.0017
1 answer
asked by
Rafael
584 views
A buffer contains 0.50 mol CH3CO2H and 0.50 mol CH3CO2- diluted with water to 1.0 L. How many moles of NaOH are required to
2 answers
asked by
Michael
569 views
The Ka of a monoprotic weak acid is 3.29 × 10-3. What is the percent ionization of a 0.176 M solution of this acid?
2 answers
asked by
Piper
577 views
Calculate the pH of the following salt solutions?
0.1 M HBr 0.1 M CaI2 0.1 BaF2 Kb (F-)=1.4x10^-11
5 answers
asked by
simi
581 views
Can someone clarify where I'm going wrong with this?
Kw for pure water is 1.2 x 10-15 at 5°C. The pH of pure water at 5°C? I
2 answers
asked by
Jana
558 views
Given the consentration of either hrgrogen ion or hydroxide ion, use the product constant of water to calculate the
2 answers
asked by
Liz
578 views
Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the
2 answers
asked by
Raphael
560 views
A buffer was prepared by dissolving 22.61g of NaCLO2 into 0.100L of 4.00M aqueous HCLO2. Calculate the pH of the original
4 answers
asked by
May
575 views
Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the
2 answers
asked by
jane
566 views
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Acids and Bases
Aqueous Solutions
Biochemistry
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Chemical Equations Balancing
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Equilibrium Chemistry
Equilibrium Constants
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