Solution A (1.0 M Sucrose) and solution B (1.0 M NaCl) are
separated by a dialysis membrane. If the membrane is spontaneously
permeable to Sucrose, NaCl, and Water, what is the INITIAL reaction
of Sucrose, NaCl, and Water?
Part A Calculate the molar concentration of OH− ions in a
8.1×10−2 M solution of ethylamine (C2H5NH2)(Kb=6.4×10−4). Express
your answer using two significant figures. [OH−] = M
Part B Calculate the pH of this solution. Express your answer
using two decimal places.
Part A
Calculate the molar concentration of OH− ions in a
7.4×10−2 M solution of ethylamine
(C2H5NH2)(Kb=6.4×10−4).
Express your answer using two significant figures.
[OH−] =
M
SubmitMy AnswersGive
Up
Part B
Calculate the pH of this solution.
Express your answer using two decimal places.
pH =
SubmitMy AnswersGive
Up
If a solution contains 7.5 X 10-8M Cu+2
and 1.0 X 10-7 M Zn+2 will either metal
precipitate as a hydroxide salt if the pH is 8.5? At what
concentration of OH- will each metal precipitate?
Given a solution of 0.125 M CH3COOH (aq) and
a solution of 0.150 M NaCH3COO (aq), how would
you prepare 100.0 mL of a buffer solution with a pH of 4.400?
pKa = 4.740 for CH3COOH
(aq).
Select one:
a. Mix 68.6 mL of the CH3COOH (aq) with 31.4
mL of the NaCH3COO (aq)
b. Mix 27.6 mL of the CH3COOH (aq) with 72.4
mL of the NaCH3COO (aq)
c. Mix 72.4 mL of the CH3COOH (aq) with 27.6
mL...