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Acids and Bases
Page 9
Questions (2,331)
Sore-throat medications sometimes contain the weak
acid phenol, HC6H5O. A 0.10 M solution of phenol has a pH of 5.43 at 25°C.
3 answers
asked by
iuhasdiudsa
581 views
Arrange the following 0.10 M aq. sol. in order of increasing pH.
KOBr, HOBr, LiOH, HBrO4, NaBrO4 (Ka for HOBr = 2.5 x 10^-9, Ka
3 answers
asked by
need help
373 views
Which hydrogen in formic acid is the acidic hydrogen?
3 answers
asked by
Leaf
496 views
Which of the following statements are true about a strong base and a weak base at a pH of 11?
A) HCl will not bring the pH of
4 answers
asked by
Ben
1,930 views
List the following in order of increasing pH of their 0.25 M solutions: NH4Cl, MgCl2, HCl, NaOCl, C6H5NH3Cl and NaClO2.
3 answers
asked by
Jim
1,384 views
What is the difference between a weak and strong base?
2 answers
asked by
samson
867 views
The pH of a solution of HCL in water is found to be 2.50.
What volume of water would you add to 1.00L of this solution to raise
3 answers
asked by
Eugene
1,357 views
How will you prove that sodium hydroxide is a base without using a litmus paper to test give the equation
3 answers
asked by
Divine
1,429 views
Write the formulas of the conjugate acids of the following Brønsted-Lowry bases.
A.C4H4N− B.(SO4)2− C.(CH3)3N Write the
4 answers
asked by
Haley
5,269 views
Examine the false statement.
Weak acids always have a high pH. Select the rewording that makes the statement true strong acids
4 answers
asked by
PLEASE help
2,761 views
When a base is introduced into this buffer, which of H2CO3 and HCO3− reacts with the base to maintain the pH of the solution?
H
4 answers
asked by
Jennifer
1,333 views
If you want to increase the pH of the stomach from 1 to 2 using an antacid tablet, how many grams of CaCO3 will be required to
3 answers
asked by
ashley
661 views
What should be the range for the exponent of [H+] in solutions that are characterized as acidic?
A. 0 to -0.07 B. 0 to 0.7 C. 0
4 answers
asked by
logan
1,114 views
Which of the following statements is true of a solution at pH 7?
A. Kw and Kb are equal. B. Kw and Ka are equal. C. Kw, Ka and Kb
4 answers
asked by
emma
1,593 views
The pKa of CH3COOH is 4.76. What statement describes a solution of CH3COOH at pH of 6.4?
3 answers
asked by
Anonymous
1,211 views
Determine the pH of a buffer made from 250 ml of 0.50M HF and 150 ml of 0.75 M NaF.
4 answers
asked by
Sara
750 views
You find the Ka of your unknown acid is 6.3x10
-5 . If you are being asked to make a buffer at pH 4.00, what is the appropriate
3 answers
asked by
anon
838 views
What is the (OH-) when pH = 4.25
4 answers
asked by
Darren
424 views
1. When performing this experiment, a student mistakenly used impure KHP to standardize the NaOH solution. If the impurity is
5 answers
asked by
anonymous
2,950 views
Which of the following salts is the most acidic
in aqueous solutions? 1. KBr 2. NaI 3. Al(NO3)3 4. BaCl2 5. AgNO3 6. Fe(NO3)2 7.
3 answers
asked by
Anonymous
1,675 views
Hypobromous acid,HOBr, has acid -ionization constant of 2.5 X 10^-9 at 25 Celsius . What is the pOH of a 0.63 M HOBr solution?
A4
3 answers
asked by
Chemistry
3,429 views
What is the pH of a 0.350M HBrO Solution? HBrO, Ka=2.3 x 10^-9
3 answers
asked by
May
1,051 views
The pH of sodium acetate/acetic acid buffer is 4.5 . Calculate the ratio of [CH3 COOH]/[CH3COO-]
4 answers
asked by
Ethio
1,743 views
12 mL of 0.0100 M HCl are added to 25.0 mL of a buffer solution that is 0.010 M HC2H3O2 and 0.08 M C2H3O2-. What is the pH of
3 answers
asked by
tim
642 views
will the following solutions be acidic, neutral, or basic? Write the net ionic equation for any reaction that takes place.
NH4Cl,
4 answers
asked by
chelsea
2,752 views
a) How would a too low molarity of NaOH affect the calculated molar mass of the unknown acid? b) How would it affect the
4 answers
asked by
Barbara
1,965 views
If you prepared a solution by adding 0.05mL (1drop) of 0.5M HCL to 5 x 10^7 mL of "pure" water. Calc the resultant PH. The
3 answers
asked by
Jake
2,312 views
Phosphoric acid is a triprotic acid with pKa's of 2.14, 6.86, and 12.4.The ionic form that predominates at pH 3.2 is?choose the
3 answers
asked by
kabelo
2,219 views
The pH of a solution that contains 0.818 M acetic acid (Ka = 1.76 x 10-5) and 0.172 M sodium acetate is
__________. The Ka of
3 answers
asked by
jack
981 views
The poison strychnine is a weakly basic compound with Kb = 1.8 „e 10ƒ{6. What is the pH of a 0.058 M solution of strychnine?
a
3 answers
asked by
miller
1,030 views
lactic acid has a pKa of 3.08. What is the approximate degree of dissociation of a .35M solution of lactic acid? I do not know
3 answers
asked by
Rose
2,739 views
A solution of acid was found to have a pH of 1.50. What is the hydrogen ion concentration of the solution? (Give your answer in
3 answers
asked by
bronson
695 views
Methanoic acid HCO2H(aq) also known as formic acid, is partly responsible for the characterisitic itchy rash produced by the
5 answers
asked by
Sarah
1,397 views
Hypochlorous acid, HOCl, is a weak acid with Ka = 3.0 × 10-8. Calculate the
pH of a 0.0125 M solution of HOCl.
3 answers
asked by
Anonymous
761 views
dilute tetraoxosulphate(vi)acid and dilute sodium hydroxide to prepare
4 answers
asked by
domey
655 views
The approximate concentration of hydrochloric acid. HCL in the stomach (stomach acid) is 0.17M. Calculate the mass of the
7 answers
asked by
Maryjane
2,148 views
A 43 mL sample of a solution of sulfuric acid is neutralized by 24 mL of a 0.053 M sodium hydroxide solution. Calculate the
7 answers
asked by
Big Boy
1,372 views
If a solution has a pH of 8.14, calculate [H3O+]?
3 answers
asked by
Anna
635 views
what is an acid
3 answers
asked anonymously
19 views
Find the pH at each of the following points in the titration of 25 ml of 3.0M HF with 0.3 M NaOH. The Ka value is 6.6x10-4.
3 answers
asked by
Brooke
1,868 views
1. What number on the pH scale is the strongest acid?
2. What number on the pH scale is the strongest base? Can you please help
4 answers
asked by
Matt-Please Help
1,201 views
0.0045 M HNO3 calculate the H3O concentration
2 answers
asked by
Caleb
678 views
Find the hydrogen ion concentration of a saturated solution of calcium hydroxide whose pH is 13.3. (If you enter your answer in
4 answers
asked by
Lisa
1,925 views
Phosphorous acid, H3PO3, is actually a diprotic acid for which Ka1 = 5.0 × 10-2 and Ka2 = 2.0 × 10-7. What are the values of
4 answers
asked by
Jen
1,658 views
A soluction of 100 mL of 0.2 M NH3 is titratedwith 50 mL of 0.5 M HNO3. What is the
pH of the resulting solution? Kb for NH3 is
3 answers
asked by
Anonymous
660 views
Malic acid is a weak diprotic organic acid with K1 = 4.0x 10-4 and K2 = 9.0 x 10-6.
(a) Letting the symbol H2A represent malic
3 answers
asked by
pinky
1,305 views
What is the pH of a solution with [H3O+] = 1 x 10-9 M?
My answer is pH=9. is that correct
3 answers
asked by
KKK
2,241 views
Determine the pH of the following solutions:
a) A 250.0 mL solution that contains 0.125 M benzoic acid and 0.147 M sodium
3 answers
asked by
Arthur T
773 views
A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and
titrated with a 0.050 M
3 answers
asked by
Mohanad
2,157 views
What is the relationship of the concentration of H3O and of OH
3 answers
asked by
Dee
457 views
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Parent Categories (27)
Atomic Structure and Bonding
Biology
Brønsted-Lowry Theory
Chemical Bonding
Chemical Compounds
Chemical Equilibrium
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Chemical Solutions
Chemical Substances
Chemistry
Equilibrium
General
Inorganic Chemistry
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Laboratory Solutions
Organic Chemistry
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