In a 1.0× 10–2 M solution of CH3NH3Br(aq), identify the relative
molar amounts of these species. List them from Most to Least,
please.
H2O
Br-
CH3NH2
CH3NH3
OH-
H3O+
HBr
The molar solubility of PbCl2 in 0.20 M Pb(NO3)2 solution
is:
(a) 1.7 x 10-4 M
(b) 9.2 x 10-3 M
(c) 1.7 x 10-5 M
(d) 4.6 x 10-3 M
(e) 8.5 x 10-5 M
Please show all work
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
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Part B
Calculate the pH of this solution.
Express your answer using two decimal places.
pH =
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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?