Question
In: Chemistry
What is the fraction of association (α) for the following potassium propionate solutions? Ignore activities. The...
What is the fraction of association (α) for the following potassium propionate solutions? Ignore activities. The Ka of propanoic acid is 1.34 × 10-5.
(a) 4.00 × 10-1 M K(C2H5CO2)
(b) 4.00 × 10-2 M K(C2H5CO2)
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
What is the fraction of association (α) for the following potassium propionate solutions? Ignore activities. The...
What is the fraction of association (α) for the following
potassium propionate solutions? Ignore activities. The Ka of
propanoic acid is 1.34 × 10-5.
(c) 5.00 × 10-12 M K(C2H5CO2)
Calculate the fraction of association (α) for the following concentrations of sodium butanoate. (Assume Ka =...
Calculate the fraction of association (α) for the following concentrations of
sodium butanoate. (Assume Ka
= 1.52 ✕ 10−5 and Kw = 1.01 ✕ 10−14. Enter unrounded
values.)
(a) 1.18 ✕ 10−1 M
(b) 1.18 ✕ 10−2 M
(c) 1.18 ✕ 10−12 M
1. Calculate the fraction of association (α) for the following concentrations of sodium butanoate. (Assume Ka...
1. Calculate the fraction of association (α) for the
following concentrations of sodium butanoate. (Assume
Ka = 1.52 ✕ 10−5 and
Kw = 1.01 ✕ 10−14. Enter unrounded
values.)
(a) 1.04 ✕ 10−1M
(b) 1.04 ✕ 10−2M
(c) 1.04 ✕ 10−12M
2.How many milliliters of 0.248 M HNO3
should be added to 217 mL of 0.00662 M 2,2'-bipyridine
hydrochloride to give a pH of 4.18? (Assume pKa
= 4.34 and Kw = 1.01 ✕ 10−14.)
What fraction of the α particles in Rutherford's gold foil experiment are scattered at large angles?...
What fraction of the α particles in Rutherford's gold foil
experiment are scattered at large angles? Assume the gold foil is
two layers thick, as shown in the figure, and that the approximate
diameters of a gold atom and its nucleus are 1.5 Å and
1.5×10−4Å,
Write a balanced chemical equation for the following chemical reactions: A. Aqueous solutions of potassium iodide...
Write a balanced chemical equation for the following chemical
reactions:
A. Aqueous solutions of potassium iodide and silver (I) nitrate
react to form silver (I) iodide precipitate and aqueous potassium
nitrate.
B. Iron wool is heated with oxygen gas to produce gray iron
(III) oxide.
C. Magnesium metal reacts with nitric acid to yield aqueous
magnesium nitrate and hydrogen gas.
D. Tin (II) chlorate decomposes on heating to give solid tin
(II) chloride and oxygen gas.
Calculate the pH and [H3O+] of the following solutions: a) 0.20 M potassium hydroxide (KOH, strong...
Calculate the pH and [H3O+] of the following solutions:
a) 0.20 M potassium hydroxide (KOH, strong base)
b) 0.10 M propanoic acid (CH3CH2COOH, Ka = 1.3 x 10-5)
c) 1.50 M diethyl amine ((CH3)2NH, Kb = 5.9 x 10-4)
Which of the following aqueous solutions are good buffer systems? and Why? . 0.19 M potassium...
Which of the following aqueous solutions are good buffer
systems? and Why?
.
0.19 M potassium hydroxide +
0.27 M potassium
bromide.
0.28 M hydroiodic acid +
0.18 M sodium
iodide.
0.30 M ammonia +
0.37 M ammonium
nitrate.
0.17 M hypochlorous acid +
0.12 M hydrobromic acid.
0.38 M calcium bromide +
0.30 M barium bromide.
- Lifestyle Changes a- What activities are hazardous to heart health and what are some solutions?...
- Lifestyle Changes
a- What activities are hazardous to heart health and what are
some solutions? (Example:
handle stress with stress management, not overeating.)
b- What are the benefits of exercise concerning heart
health?
- Aspirin
a. How can aspirin help in preventing heart disease?
Calculate the molar solubility of BaSO4 in the following solutions using activities. (a) pure water (b)...
Calculate the molar solubility of BaSO4 in the following solutions
using activities.
(a) pure water
(b) in 0.010 M NaCl
(c) in 0.010 M Na2SO4
, what plan including solutions and activities would hospital administrator present to the Board of Directors...
, what plan including solutions and activities would hospital
administrator present to the Board of Directors to increase the
reputation of the hospital in the community, keeping the
physicians, bringing in more financial resources?
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