Treatment of benzaldehyde ( C 6 H 5 CHO ) with Zn ( Hg ) in aqueous HCl forms a compound Z that has a molecular ion at 92 in its mass spectrum. Z shows absorptions at 3150 − 2950, 1605 and 1496 cm − 1 in its IR spectrum. Give a possible structure for Z .
Treatment of benzaldehyde ( C 6 H 5 CHO ) with Zn ( Hg ) in aqueous HCl forms a compound Z that has a molecular ion at 92 in its mass spectrum. Z shows absorptions at 3150 − 2950, 1605 and 1496 cm − 1 in its IR spectrum. Give a possible structure for Z .
Solution Summary: The author explains that the molecular ion is the radical cation formed by ejection of electrons from a molecule.
Treatment of benzaldehyde
(
C
6
H
5
CHO
)
with
Zn
(
Hg
)
in aqueous
HCl
forms a compound
Z
that has a molecular ion at
92
in its mass spectrum.
Z
shows absorptions at
3150
−
2950, 1605 and 1496 cm
−
1
in its IR spectrum. Give a possible structure for
Z
.
5. A buffer consists of 0.45 M NH, and 0.25 M NH-CI (PK of NH 474) Calculate the pH of the butter. Ans: 9.52
BAS
PH-9.26 +10g (10.95))
14-4.59
PH=4.52
6. To 500 ml of the buffer on #5 a 0.20 g of sample of NaOH was added
a Write the net ionic equation for the reaction which occurs
b. Should the pH of the solution increase or decrease sightly?
Calculate the pH of the buffer after the addition Ans: 9.54
Explain the inductive effect (+I and -I) in benzene derivatives.
The inductive effect (+I and -I) in benzene derivatives, does it guide ortho, meta or para?
Chapter 13 Solutions
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