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Acid-Base Chemistry
Page 10
Questions (825)
If a buffer solution is 0.190 M in a weak acid (Ka = 5.8 x 10^-5) and 0.550 M in its conjugate base, what is the pH?
What if it
4 answers
asked by
Katherine
1,422 views
The mass of oxalic acid H2C2O4 (impurity) present
1 answer
asked by
Mike oforka
15 views
pka of butyric acid
1 answer
asked anonymously
22 views
Which is not a conjugate acid-base pair?
a) H3O+ and H2O b) H2O and OH- c) NH3 and NH2-- d) NH4+ and NH3 e) HNO2 and H2O
11 answers
asked anonymously
53 views
Chemistry
The hydronium ion concentration of lemon juice is 5 x 10^ –3. A sample of lemon juice will have [OH–] value of
4 answers
asked anonymously
34 views
Hydrogen phosphate, H3PO4(s), is a chemical substance, which, in pure anhydrous form, exists as white solid. It melts at 42.35oC
4 answers
asked anonymously
66 views
a 25.0 mL sample of .050 M solution of aqueous trimethylamine is titrated with a .063 M solution of HCl. calculate pH the
2 answers
asked by
Elaine
1,443 views
What is the solubility of CaF2 in a buffer solution containing 0.45M formic acid and 0.20M sodium formate?
Given: Ka for formic
3 answers
asked by
Tina
1,431 views
A .1M solution of chloroacetic acid is 11% ionized. Using this information, calculate [ClH2COO-], {H+], [ClCH2COOH] and Ka for
3 answers
asked by
Kaylin
1,414 views
you extract 10 g of benzoic acid from an ether solution with aqueous NaHCO3
what is the min amount of concentrated HCl (37% by
4 answers
asked by
Anonymous
1,338 views
Calculate the pH of a solution prepared by dissolving 10.0 g of tris(hydroxymethyl)aminomethane ("tris base") plus 10.0 g of
4 answers
asked by
Sidney
1,339 views
Calculate the pH of a 0.800 M NaCH3CO2 solution. Ka for acetic acid, CH3CO2H, is
1 answer
asked by
noel
1,307 views
"Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5 10-3, Ka2 = 8 10-8, and Ka3 = 6 10-10. Calculate [H+], [OH ‾ ],
4 answers
asked by
Clur
1,316 views
Which of the following result in buffered solutions when equal volumes of the two solutions are mixed?
a.) .1 M HCl and .1 M
2 answers
asked by
Marcus
1,321 views
Calculate the pH of the solution that results from mixing 30.0 mL of 0.050 M HCN(aq) with 70.0 mL of 0.030 M NaCN.
2 answers
asked by
Anonymous
1,293 views
22 mL of 0.37 mol per litre acetic acid is titrated by way of a standardized 0.29 mol/L KOH solution. Calculate the pH of the
4 answers
asked by
Joseph
1,279 views
Write the formula of CH3NH+3 conjugate base. and Indicate whether the conjugate base of CH3NH+3 is a strong base, a weak base,
4 answers
asked by
Shaun
1,288 views
the pka of acetone is CH3COCH3 is 19.3 which of these bases is strong enough to deprotonate acetone?
a)KOH (pka of H20 = 15.7)
2 answers
asked by
ben
1,281 views
Butanoic acid (Ka = 1.52 x 10-5) has a partition coefficient of 3.0 (favouring benzene) when
distributed between water and
2 answers
asked by
Daniel
1,272 views
1) According to Bronsted-Lowry theory
acids are _________ bases are _________
5 answers
asked by
sammie doodles :-)
1,272 views
All Brønsted-Lowry acids
A. are aqueous solutions. B. can act as Arrhenius acids. C. donate protons. D. all of the above I am a
2 answers
asked by
Lola
1,294 views
1.)An ammonia/ammonium buffer solution contains 0.35 M NH3 and 0.72 M NH4+. The Kb value of ammonia is 1.8×10−5. Calculate
2 answers
asked by
LuigiR
1,244 views
If one added 130 mL of 2 M NaOH to 1 L of a buffer composed of 2.3 M NH3 and 3.2 M NH4Cl, what would be the pH of the resulting
2 answers
asked by
Anna
1,220 views
Buffers- Common Ion effect
IS this Correct Calculate the pH of a aqueous solution containing 0.15 M HNO2 and 0.20 M NaNO2 (aq).
2 answers
asked by
Saira
1,255 views
How can you determine if NH4ClO2 is an acid, base, or neutral using Ka and Kb values?
2 answers
asked by
winter
1,213 views
How much 5 M KOH must be added to 1.0 L of 0.1 M glycine at pH 9.0 to bring its pH to exactly 10.0? The amino group of glycine
1 answer
asked by
Veronica
1,278 views
what is the acid dissociation constant of a weak acid if a concentration of 0.3 M gives a hydrogen ion concentration of 0.001M?
h
2 answers
asked by
afjdsajf;sdfasfdsa
1,221 views
A buffer contains 5.00 M acetic acid and 5.00 M acetate anion. Gaseous HCl (0.010 mole) is added to 1.00 L of this buffer
2 answers
asked by
Ivana
1,220 views
Do strong acid strong base titrations have a buffer region?
9 answers
asked by
jam
1,211 views
If 20ml of glacial acetic acid (pure HC2H3O2) is diluted to 1.5L with water, what is the pH of the resulting solution. The
3 answers
asked by
Kristen
1,202 views
You are given Ka of carbonic acid is 4.3 x10^-7. This means that Carbonic acid is a
good hydrogen-ion acceptor*** good
4 answers
asked by
Kayla
1,168 views
How can I calculate a pH of hypochlorite buffer into LiCLO with only initial concentrations and no Ka value?
[CLO-]=.1M
4 answers
asked by
Martin
1,167 views
A 20.0 mL sample of 0.687 M HBr is titrated with a 0.216 M NaOH solution. The pH after the addition of 10.0 mL of NaOH is
3 answers
asked by
katie
1,178 views
A solution of HClO is mixed and found to
have a pH of 4.53. Find what the initial concentration of HClO was for this solution. Ka
3 answers
asked by
Anonymous
1,179 views
Calculate the [H3O+] of the following polyprotic acid solution: 0.145 M H3C6H5O3?
1 answer
asked by
Anonymous
1,176 views
oxalic acid, h2c2o4, is a weak acid capable of providing two H3O+ ions.
ka=.059 k2=6.4E-5 the [h3o]+ in a .38 M solution of
2 answers
asked by
anonymous
1,161 views
What is the pH of a solution when 1ml of 0.10M NaOH is added to 100ml of buffer containing 0.1M acetic acid and 0.1M sodium
2 answers
asked by
hawi
1,151 views
If you have 500 ml of .15M Formic Acid, what is the pH of this solution? What is the
pKa? How many grams of Sodium Formate would
2 answers
asked by
anon
1,135 views
calculate the pH of 20.00mL of 2.00 M HCl diluted to 0.500 L
2 answers
asked by
Colin
1,095 views
What is the pH of a 0.40 mol L^-1 H2Se solution that has the stepwise dissociation constants
Ka1 = 1.3 × 10^-4 and Ka2 = 1.0 x
2 answers
asked by
Elaina
1,092 views
The [H3O+] in a wine bottle is 3.1 10–2 M. What is the [–OH] in this wine?
2 answers
asked by
denis
1,094 views
Two Concept Questions for you:
1) Why is the concentration of a solution such as NaH2PO4 ignored when calculating the pH given
3 answers
asked by
Chemistry Confused
1,118 views
what is ph during titration of 10.00ml of 0.1000m triethylamine, ch3ch2)3n (kb=2.3x10^-, with 0.1000m HCL solution after
1 answer
asked by
ette
1,118 views
compute for the pOH of a solution prepared by dissolving 5.50g KOH in enough to make a 100.0mL solution
2 answers
asked by
valerie faylogna
1,086 views
calculate the pH of the solution when 100mL of .05M KF is mixed with 200mL of .05M HF; Ka (HF) = 3.467x10^-4. I tried to use the
7 answers
asked by
Jamie
1,091 views
A 25.0 mL sample of 0.723 M HClO4 is titrated with a KOH solution. The H3O+ concentration after the addition of of KOH is
1 answer
asked by
dj westfall
1,103 views
Calculate the [H3O+] of the following polyprotic acid solution: 0.145 M H3C6H5O3?
2 answers
asked by
Anonymous
1,078 views
Sorbic acid, HC6H702 (pKa=4.77), is widely used in the food industry as a preservative. For example, its potassium salt
2 answers
asked by
Rav
1,085 views
calculate the pH of 5x10^-2 M of benzoic acid with pKa= 4.19
2 answers
asked by
Jess
1,054 views
A solution is made by dissolving 18.9 g of HCl in enough water to make 716 mL of solution. Calculate the pH of the solution at
1 answer
asked by
Kristen
1,057 views
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