A saturated solution prepared at 70 ° C contains 32.0 g CuSO 4 per 100.0 per solution. A 335 g sample of this solution at 0 ° C is CuSO 4 /100g soln, what mass of CuSO 4 ⋅ 5 H 2 O would be obtained? [ Hint: Note that the solution composition is stated in terms of CuSO 4 and that the solid that crystallizes is the hydrate CuSO 4 ⋅ 5 H 2 O would be obtained? [Hint: Note that the solution composition is stated in terms of CuSO 4 and that the solid crystallizes is the hydrate CuSO 4 ⋅ 5 .
A saturated solution prepared at 70 ° C contains 32.0 g CuSO 4 per 100.0 per solution. A 335 g sample of this solution at 0 ° C is CuSO 4 /100g soln, what mass of CuSO 4 ⋅ 5 H 2 O would be obtained? [ Hint: Note that the solution composition is stated in terms of CuSO 4 and that the solid that crystallizes is the hydrate CuSO 4 ⋅ 5 H 2 O would be obtained? [Hint: Note that the solution composition is stated in terms of CuSO 4 and that the solid crystallizes is the hydrate CuSO 4 ⋅ 5 .
Solution Summary: The author explains that the mass of CuSO 4.H 2 O that crystallized should be calculated.
A saturated solution prepared at
70
°
C
contains
32.0
g
CuSO
4
per 100.0 per solution. A 335 g sample of this solution at
0
°
C
is
CuSO
4
/100g
soln, what mass of
CuSO
4
⋅
5
H
2
O
would be obtained? [Hint: Note that the solution composition is stated in terms of
CuSO
4
and that the solid that crystallizes is the hydrate
CuSO
4
⋅
5
H
2
O
would be obtained? [Hint: Note that the solution composition is stated in terms of
CuSO
4
and that the solid crystallizes is the hydrate
CuSO
4
⋅
5
.
Solve the structure and assign each of the following spectra (IR and C-NMR)
1.
For an unknown compound with a molecular formula of C8H100:
a.
What is the DU? (show your work)
b.
Solve the structure and assign each of the following spectra.
8
6
2
ō (ppm)
4
2
0
200
150
100
50
ō (ppm)
LOD
D
4000
3000
2000
1500
1000
500
HAVENUMBERI -11
16. The proton NMR spectral information shown in this problem is for a compound with formula
CioH,N. Expansions are shown for the region from 8.7 to 7.0 ppm. The normal carbon-13 spec-
tral results, including DEPT-135 and DEPT-90 results, are tabulated:
7
J
Normal Carbon
DEPT-135
DEPT-90
19 ppm
Positive
No peak
122
Positive
Positive
cus
и
124
Positive
Positive
126
Positive
Positive
128
No peak
No peak
4°
129
Positive
Positive
130
Positive
Positive
(144
No peak
No peak
148
No peak
No peak
150
Positive
Positive
してし
Chapter 14 Solutions
General Chemistry: Principles And Modern Applications Plus Mastering Chemistry With Pearson Etext -- Access Card Package (11th Edition)
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