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Acids and Bases
Page 10
Questions (2,326)
What would be the pH of a soda water made by saturating pure water with pure CO2 at 1 atm pressure?
3 answers
asked by
Ashley
726 views
Stomach acid is essentially 0.10 M HCl. An active ingredient found in a number of popular antacids is CaCO3. Calculate the
5 answers
asked by
Brit
1,111 views
What chemical substance is in red cabbage which serves as an indicator for acids and bases?
4 answers
asked by
chris
726 views
Calculate the pH of a solution prepared by dissolving 12.2 g of benzoic acid in enough water to produce a 500 mL solution.
Ka =
5 answers
asked by
Jake
1,462 views
A saturated aqueous solution of calcium hydroxide has a pH of 12.25. What is the [Ca 2+] of such a
solution?
3 answers
asked by
Andy
744 views
In phosphoric acid, why is it relatively easy to remove the first proton, considerably harder to remove the second proton, and
3 answers
asked by
Tina
1,941 views
The pH of a 0.002 50 mol/L solution of benzoic acid is 3.65. Calculate the Ka for benzoic acid.
3 answers
asked by
Maria
1,773 views
If solution A had a pH of 8, and solution B had 1,000 times this hydrogen ion concentration what would be the pH of solution B,
3 answers
asked by
Kristin
1,469 views
HZ is a weak acid. A concentration of 0.020M in aqueous solution gives a pH of 4.93 what is the Ka?
3 answers
asked by
Mandie
1,548 views
In an acidic solution, why is the OH- concentration lower than it is in pure water?
3 answers
asked by
Sheryl
628 views
Classify each of the following solutions as acidic, basic, or neutral based on the pH value.
(a) pH = 8.0 (b) pH = 7.0 (c) pH =
3 answers
asked by
norma
2,229 views
why does it take more NaOH to neutralize H2SO4 than in HCl
3 answers
asked by
Anonymous
1,261 views
Calculate the H3O^+ and OH^- ion concentrations in a solution that has a pH of 3.72.
2 answers
asked by
Maria
1,054 views
Calculate the pH of a 0.250M solution of Sulfurous acid, H2SO3.
4 answers
asked by
Josh
2,290 views
what is the [CH3COO^-]/[CH3COOH] ration in an acetate buffer (Ka=1.76 x 10^-5) at pH 3.8? show calculations
3 answers
asked by
kabelo
1,061 views
If the H3O+ concentration is 10−7 M, what is
the pH?
3 answers
asked by
Anonymous
619 views
the pka of benzoic acid is 4.2. show mathematically that this acid is 50% ionized. Use results of part a t oexplain why
2 answers
asked by
ZC
770 views
What is the hydroxide ion concentration in a solution with [H3O-] = 7.67 x 10^-9M
4 answers
asked by
Anonymous
1,229 views
The question is:
What would happen if you tested bleach with a pH indicator and why? I know that it would turn out with a pH of
6 answers
asked by
Amy
1,121 views
Ammonia (NH3) is a weak base with a Kb= 1.8 X 10^-5 and hydrochloric acid (HCl) is a strong acid. What is the pH of a mixture
6 answers
asked by
Chelsea
844 views
A solution of volume 80.0 mL contains 16.0 mmol HCHO2 and 9.00 mmol NaCHO2.
If 1.00 ml of 12 M HCl is added to this, what will be
4 answers
asked by
Kat
936 views
Which of the following is a characteristic of an acid?
Choose all that apply A. feels slippery B. accepts protons C. donates
3 answers
asked by
Username829292086832
43 views
What happens when a base is added to a system with a buffer and which part of the buffer reacts with the added base?
1 answer
asked by
Student
331 views
fin the ph for buffer 0.12m,0.16m NaN02 with the given ka(HNO2)= .5x10^-
5
3 answers
asked by
exo-l
944 views
An aqueous solution has a pOH = 6.5. What is the [H3O+] of this solution?
3 answers
asked by
Leaf02
878 views
1. Which solution has the lowest pH?
a. 0.0045 M C6H5COOH (Ka=6.3x10-5) b. 0.00018 M HNO3 c. 0.016 M H2CO3 (Ka1=4.3x10-7) *** d.
4 answers
asked by
luna
643 views
A buffer consisting of H2PO4- and HPO42-, helps control the pH of physiological fluids. Many carbonated soft drinks also use
3 answers
asked by
SALLY
1,965 views
A 25.0 mL sample of 0.100 M pyridine (Kb for pyridine is 1.7 ✕ 10-9) is titrated with 0.100 M HCl solution. Calculate the pH
3 answers
asked by
ryan
896 views
When 0.285 g of a solid weak acid HA (molar mass = 184 g mol−1) is dissolved in water to a total volume of 25.0 mL, the pH of
4 answers
asked by
sara
438 views
Choose the best answer to complete the statement
Strong Acids and Bases... are strong electrolytes All of the choices are
4 answers
asked by
Meep
807 views
What is the pH of a solution with a hydronium ion concentration of 3.5 x 10-4 M? The pOH?
4 answers
asked by
no need
1,255 views
What is the pKb of Formate ion?
0.64M ........... 8.77 pH Help!! I'm not sure how to calculate this... I know to use the Kb
4 answers
asked by
Andrea
1,644 views
The dibasic compound B (pKb1 = 4.00, pKb2 = 8.00) was titrated with 1.00 M HCl. The initial solution of B was 0.100 M and had a
3 answers
asked by
joshua
3,174 views
What is the pH of a 0.030 M solution of oxalic acid? Ka for oxalic acid is 5.9 × 10−2.
3 answers
asked by
Anonymous
1,631 views
A solution has a hydrogen ion (or hydronium) concentration of 3.16 X 10-8 M. What is the pH of the solution?
7.5 8.5 <my choice
4 answers
asked by
Kels
2,999 views
Arrange these acids from weakest to strongest: HClO2, HCN, HF, HCl
Ik the order is : HCN < HF < HClO2 < HCl but how exactly does
4 answers
asked by
Stacy
2,958 views
Assuming equal concentrations, rank these solutions by pH: hclo4 caoh2 NH3 koh hbro
3 answers
asked by
Carlos
2,027 views
the ka value of 0.001moldm-3 solution of a weak acid is 1.6*10-6 calculate the ph and the pka
3 answers
asked by
Archie
473 views
Use the formula pH = −log[H^+]
9.. The hydrogen ion concentration of a substance is 4.3*10^-6 × moles per liter.Find the pH.
3 answers
asked by
john
1,252 views
Calculate the H+ of 0.1 M NaOH
Calculate the pH of 0.1 M NaOH [H+]=10^ph [H+]=10^-13 [H+]=1*10^-13M Since pH+ pOH=14 pH= -log
4 answers
asked by
Clare
1,047 views
What is the conjugate acid of O2^-2
3 answers
asked by
Anonymous
739 views
Identify the Bronsted-Lowry acid in the following reaction.
H2O (l) + HCO31- (aq) → H3O+ (aq) + CO32- (aq)
3 answers
asked by
KK
3,341 views
Which of the following is the ph of a solution in which concentration of hydrogen ion is greater than hydroxide ion.
2 answers
asked by
kody
788 views
Just two more to check, thanks!
1) The pH of a 1.25 M solution of unknown monoprotic acid is 5.43. Determine the value of Ka for
4 answers
asked by
Amanda
949 views
Calculate the pH of the resulting solution if 25.0 mL of 0.250 M HCl(aq) is added to
(a) 35.0 mL of 0.250 M NaOH(aq). (b) 15.0 mL
4 answers
asked by
Janavi
2,594 views
pure water has a hydrogen ion concentration of 1 x 10-7 m and a ph of 7. a student measures a basic solution and finds that it
3 answers
asked by
didisilver
2,545 views
what is the pH of 0.80 M NaCN? What is the concentration of HCN in the solution?
3 answers
asked by
Anonymous
915 views
What is the concentration of H+ ions in a buffer solution containing 0.305 M benzoic acid (with ionization constant 6.5 ×
4 answers
asked by
gabriella
1,076 views
Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
3 answers
asked by
Mandy
1,010 views
Citric acid (H3C6H5O7) is triprotic acid which reacts with NaOH according to the balanced chemical equation shown below what
3 answers
asked by
Ray
2,332 views
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