If the heat capacity varies with temperature, a better form of equation 2.9 is to solve q = ∫ T i T f n C T - ⅆ t A 50.0-g sample of white phosphorus is heated from 298 K to 350K. If its molar heat capacity is C T - = 56.99+0.1202T J/mol.K, how much heat is needed?
If the heat capacity varies with temperature, a better form of equation 2.9 is to solve q = ∫ T i T f n C T - ⅆ t A 50.0-g sample of white phosphorus is heated from 298 K to 350K. If its molar heat capacity is C T - = 56.99+0.1202T J/mol.K, how much heat is needed?
Solution Summary: The author explains that the heat needed is 8.03 x 10 3 J. The specific heat is an intensive property and is a proportionality constant.
If the heat capacity varies with temperature, a better form of equation 2.9 is to solve
q
=
∫
T
i
T
f
n
C
T
-
ⅆ
t
A 50.0-g sample of white phosphorus is heated from 298 K to 350K. If its molar heat capacity is
C
T
-
= 56.99+0.1202T J/mol.K, how much heat is needed?
Predict the major organic product(s) of the following reactions. Indicate which of the following mechanisms is in operation: SN1, SN2, E1, or E2.
(c)
(4pts)
Mechanism:
heat
(E1)
CH3OH
+
1.5pts each
_E1 _ (1pt)
Br
CH3OH
(d)
(4pts)
Mechanism:
SN1
(1pt)
(e)
(3pts)
1111 I
H
10
Ill!!
H
LDA
THF (solvent)
Mechanism: E2
(1pt)
NC
(f)
Bri!!!!!
CH3
NaCN
(3pts)
acetone
Mechanism: SN2
(1pt)
(SN1)
-OCH3
OCH3
1.5pts each
2pts for either product
1pt if incorrect
stereochemistry
H
Br
(g)
“,、
(3pts)
H
CH3OH
+21
Mechanism:
SN2
(1pt)
H
CH3
2pts
1pt if incorrect
stereochemistry
H
2pts
1pt if incorrect
stereochemistry
A mixture of butyl acrylate and 4'-chloropropiophenone has been taken for proton NMR analysis. Based on this proton NMR, determine the relative percentage of each compound in the mixture
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Calorimetry Concept, Examples and Thermochemistry | How to Pass Chemistry; Author: Melissa Maribel;https://www.youtube.com/watch?v=nSh29lUGj00;License: Standard YouTube License, CC-BY