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Acids and Bases
Page 6
Questions (2,329)
Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the
6 answers
asked by
Paula
12,742 views
Given acidity constant,Ka of benzoic acid is 6.28 X 10^-5. pH of 0.15 molar solution of this acid is ?
Here is my method: Benzoic
4 answers
asked by
Meenaakshi
3,593 views
Calculate the pH of 0.20 M NaCN solution.
NaCN ---> Na+ + CN- CN- + H20+ ---> HCN+ + OH- Initial conc. of CN- = 0.20 mol/L change
5 answers
asked by
Lena
4,947 views
A. Strong Base
1.) What is the concentration of a solution of KOH for which the pH is 11.89? 2.) What is the pH of a 0.011M
3 answers
asked by
jaycab
4,376 views
100 mL of 1.0 M formic acid (HCOOH) is titrated with 1.0 M sodium hydroxide (NaOh).
The Approximate pKa is 4 At the pKa, what
4 answers
asked by
Aria
7,042 views
Calculate the pH of a 0.053 M (C2H5)2NH solution (Kb = 1.3 10-3).
5 answers
asked by
Kaleen
2,159 views
What is the pH of a solution prepared by dissolving 8.40 g of aniline hydrochloride C6H5NH3Cl in 750 mL of 0.210 M
5 answers
asked by
anonymous
1,159 views
what is the pH of an aqueous solution that is 0.123M NH4Cl
5 answers
asked by
help!!!
2,258 views
At 25 degrees Celsius, the base ionization constant for NH3 is 1.8 x ^-5. Determine the percentage ionization of a M solution of
5 answers
asked by
Caitlin
1,340 views
A 8.6 X10^-3M Solution of H3PO4 has a Ph=2.30. what is Ka for H3PO4?
Have no clue how to solve this problem
5 answers
asked by
Anonymous
1,049 views
Nitrous acid, HNO2, has a Ka of 7.1 x 10^-4. what are [H3O+], [NO2-], and [OH-] in .920 M HNO2?
4 answers
asked by
Ron
2,157 views
A 5.00 mL aliquot of vinegar (acetic acid, FW = 63 g/mol) was diluted and
titrated with 0.1104 M NaOH requiring 32.88 mL. If the
6 answers
asked by
Rick
1,690 views
0.15g of hydrogen chloride HCl is dissolved in water to make 8.0L of solution. What is the pH of the resulting hydrochloric acid
4 answers
asked by
Jonah
3,696 views
Antacids are taken to relieve heartburn or indigestion caused by excess stomach acid. The active ingredients vary depending on
5 answers
asked by
Tabby
1,736 views
If acetic acid is the only acid that vinegar contains [Ka = 1.8*10-5] , calculate the concentration of acetic acid in the
7 answers
asked by
Jonah
9,195 views
Find the concentration of H+ if pOH of a solution is 11.7.
4 answers
asked by
El chapo
2,295 views
What is the hydrogen ion concentration of a solution whose pH Is 4.10
5 answers
asked by
Abasiekeme udoh
2,416 views
A certain weak base has a Kb of 7.80 × 10-7. What concentration of this base will produce a pH of 10.17?
4 answers
asked by
Lana
1,377 views
A solution of aniline(C6H5NH2, Kb=4.2x10^-10) has a pH of 8.69 at 25 Celsius. What was the initial concentration of aniline?
I
5 answers
asked by
V
3,620 views
a 0.250 mol sample of HX is dissolved in enough water to form 655mL of solution. If the pH of the solution is 3.44, what is the
4 answers
asked by
ken
2,473 views
a. what is the pKb of NO2-
b. what is the pKa of the hydrazinium ion?
5 answers
asked by
Anonymous
2,997 views
Given that Ka for HIO is 3.2 × 10-11 at 25 °C, what is the value of Kb for IO– at 25 °C? Then, Given that Kb for C6H5NH2 is
4 answers
asked by
Michelle
2,781 views
How is strength different from concentration for acids and bases? please give an example.
5 answers
asked by
Anonymous
1,859 views
Assuming equal concentrations , rank these solutions by pH. RbOH(aq), NH3(aq), HF(aq) HBr(aq), Ca(OH)2(aq).
I know the most
6 answers
asked by
Nia
8,201 views
What mass of limestone (in kg) would be required to completely neutralize a 15.2 billion-liter lake that is 1.9×10−5 M in
4 answers
asked by
Summer
1,624 views
what is the pH of coffee if the [H3O+] is 1*10^-5 M?
4 answers
asked by
April
1,867 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
7 answers
asked by
George
3,045 views
The hydrogen-ion concentration of a 0.25 M solution of HCN (Ka = 4.9 ´ 10-10) is
I keep getting 1.1 *10^-5
4 answers
asked by
Mohamad
1,707 views
a buffer is prepared by combining 10.0g of NaH2PO4 wiht 150mL of 0.20M NaOH and diluting to 2.0L. What is the pH of the buffer,
5 answers
asked by
kathryn
1,459 views
What is the original molarity of a solution of ammonia whose pH is 11.11
okay i tried to convert to pOH- so i got 2.89 and then
4 answers
asked by
Jason
3,336 views
Which of the following is a weak base
HOCl LiOH Ba(OH)2 KOH NH3
5 answers
asked by
Lauren
1,893 views
What will be the observation when a piece of blue litmus paper is dropped in a distilled water and a rain water.
7 answers
asked by
Adelaide
1,186 views
Given the following acid-dissociation constants, which acid has the strongest conjugate base?
A. CH3COOH Ka = 1.8 * 10^-5 B. HCN
5 answers
asked by
Edward
1,290 views
What is the pH change of a 0.220M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.155M with no
4 answers
asked by
Samantha
1,295 views
One way to raise the pH of an acidic lake (and restore aquatic life) is to add limestone (CaCO3).
How many grams of CaCO3 are
5 answers
asked by
Anonymous
1,879 views
HA +H2O ---> A- +H3O+
In the equation is HA a strong acid?
4 answers
asked by
Emma
4,714 views
Given a diprotic acid, H2A, with two ionization constants of Ka1=3.9E-2 and Ka2=5.9E-8.
Calculate the pH and molar concentration
4 answers
asked by
Jo
5,744 views
weak acid, HA, is 0.1 % ionized in a 0.2 M solution.
(a) What is the equilibrium constant for the dissociation of the acid (Ka)?
4 answers
asked by
YBB
2,056 views
Suppose that the concentration of H+ in Solution #1 is 10,000 times greater than in Solution #2. What can you conclude about the
3 answers
asked by
Elizabeth
2,407 views
Formic acid ,HCOOH, is a monoprotic acid. circle the acidic hydrogen. Write the formula of the conjugate base after the acidic
4 answers
asked by
jipah
2,353 views
Trichloroacetic acid (CCl3CO2H) is a corrosive acid that is used to precipitate proteins. The pH of a 0.050 M solution of
4 answers
asked by
Kaleen
4,784 views
The pH of a 0.0050 M aqueous solution of calcium hydroxide is? Make sure to include all equations.
4 answers
asked by
Student
4,081 views
The pH of 0.50 M HBrO(aq) is 4.50. Calculate the change in pH when 6.50 g of sodium hypobromite is added to 110. mL of the
6 answers
asked by
Trixie
1,318 views
The total acidity in water samples can be determined by neutralization with standard sodium hydroxide solution. What is the
4 answers
asked by
lyne
1,855 views
What volume of 5.0 M H2SO4 should be diluted to 100mL to prepare a 0.25 M H2SO4 M solution?
I know the molar mass of H2SO4 is 98g
4 answers
asked by
Mandy
3,285 views
Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that
6 answers
asked by
Brody
6,900 views
what is the final pH after 1 drop(.05ml) of 6M HCl is added to 1.0L of freshly prepared pure water that was originally at a pH
4 answers
asked by
tiffany
1,860 views
How many mL of stomach acid (assume it is .035 M HCI) can be neutralized by an antacid tablet containing .231g
Mg(OH)2?
4 answers
asked by
natash
2,862 views
An unknown blue liquid is found. When tested, it has high amounts of hydroxide ions and low amounts of hydronium ions. Is this
4 answers
asked by
yeet
538 views
A GLASS CUP OF ORANGE JUICE IS FOUND TO HAVE A POH OF 11.40. CALCULATE THE CONCENTRATION OF THE HYDROGEN ION IN THE JUICE.
4 answers
asked by
RUTH
614 views
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