Kinetics of the mutarotation reaction of glucose
Erika Urgiles
Lab Partners:
Caron Spence
Abstract
Introduction
Optical isomers are a form of stereoisomers that possess the ability to rotate planepola
Practice exam on kinetics
CHM 3400, Dr. Chatfield, Fall 2011
I suggest that you study for the exam and give yourself 1 hours to take it. Making reference to
equations in the text is fine. I suggest yo
The determination of the enthalpy of
vaporization of a liquid
Erika Urgiles
Lab Partners:
Caron Spence
Joseph Maerovitz
CHM 3400L
February 20, 2015
Abstract
The purpose of this experiment was to deter
Practice exam on kinetics
CHM 3400, Dr. Chatfield, Fall 2011
I suggest that you study for the exam and give yourself 1 hours to take it. Making reference to
equations in the text is fine. I suggest yo
CHAPTER 6
1.
a)
b)
1800 J s1m 2 3600 s hr 1 8 hr 1 m 2 0.018 kg mol1
43270 J mol1
= 21.6 kg
Vapor pressure of water at 40C is 7370 Pa
nRT [(21.6 kg) (0.018kg mol1 )](8.314 J K 1 mol1 )(313K)
=
p
(7370
Exam I
CHM 3410, Dr. Mebel, Fall 2005
1. (10 pts) The evolution of life requires the organization of a very large number of
molecules into biological cells. Does the formation of living organisms viol
The gas laws
Equations of state
The state of any sample of substance is specified by giving the values of the
following properties:
V the volume the sample occupies
p the pressure of the sample
T the
CHAPTER 11
1.
a)
19
o (K) = / h = (2.2 eV)(1.6 10 J / eV) = 5.311014 s1
6.626 1034 J s
8 m s1
o (K) = c / o = 2.9981014 1 = 5.64 107 m = 564 nm
5.3110 s
o (Ni) = (Ni) o (K) = 5.0 o (K) =12.11014 s1
CHAPTER 13
1.
a)
hc (6.626 10 3 4 Js)(3 108 m s1)
E=
=
= 2.92 10 1 9 J
7
6.8 10 m
19 1.602 1019 =1.82 eV
= 2.92 10
(an Einstein is a mole of photons so multiply by NA to find kJ Einstein-1)
= (2.92 10
Solutions 6
1. The volume of the laboratory is
V = 5.05.03.0 = 75.0 m3
a) water: p = 24 Torr
n = pV/RT = (24 Torr) (75.0103 L) / cfw_(62.364 L Torr K-1 mol-1)
(298.15 K) = 96.855 mol
m = nM = (96.855
Homework 11 Solutions
1. We fit the initial rate data to the equation
log r0 = log k + a log[A]0
A = C6H12O6
_
log(r0/mol L-1 s-1)
0.69897
0.88081
1.19033
1.30103
log([A]0/mmol L-1) 0.00
0.18752
0.494
Solutions 10
1. The Nernst equation applies to half-cells as well as cells
Initially,
Ei = E - (RT/F)ln Qi = E - (25.7 mV / )ln Qi
Finally,
Ef = E - (25.7 mV / )ln Qf
The half reaction for the electro
Homework 5 Solutions
1. The substance with the lower molar Gibbs energy is the more stable; therefore, rhombic
sulfur is more stable. The application of pressure tends to favor the substance with the
Homework 3 Solutions
1. We first determine the amount of molecules in the sample:
n = 65.0 g / 131.29 g mol-1 = 0.495 mol
Vi = nRTi/pi = (0.495 mol) (0.0820574 L atm K-1 mol-1) (298 K) / 2.00 atm =
6.
Physical transformations of pure substances
Boiling, freezing, and the conversion of graphite to diamond examples of phase
transitions changes of phase without change of chemical composition. In this
Homework 4 Solutions
1. U = U(0) + (3/2)nRT
U is independent of V, p
H = U + pV = U + nRT = U(0) + (5/2)nRT
(U/V)T = 0 and (U/p)T = 0
(H/V)T = 0 and (H/p)T = 0
2. The isothermal Joule-Thompson coeffic
Homework 1 Solutions
1. The external (atmospheric) pressure is greater than the internal pressure, hence
ex - in = gh
in = ex - gh = 758 Torr - gh
gh can be expressed in Torr as follows
gh = 3.55 cm H
Solutions 7
1. For an ideal solution,
A - A* = RT lnxA = (8.3145 J K-1 mol-1)(353.25 K) ln(0.30) = -3.536 kJ mol-1
aA = pA / pA*
A xA = pA / pA*
pA = A xA pA*
At the normal boiling point, pA* = 1 atm
Simple mixtures
Before dealing with chemical reactions, here we consider mixtures of substances that do not
react together. At this stage we deal mainly with binary mixtures (mixtures of two component
CHAPTER 12
1.
a)
NO-
NO
NO
+
(2px)
(2px)
(2px)
*(2p)
(2p)
(2px)
(2s)
*(2p)
(2p)
(2px)
(2s)
*(2p)
(2p)
(2px)
(2s)
(2s)
(2s)
(2s)
(1s)
(1s)
(1s)
(1s)
(1s)
bond order = 2.5
bond order = 2
(1s)
bond order
CHAPTER 14
1.
The gyromagnetic ratio has units of rad T-1 s-1, while B0 is Tesla. (Table 14.1) So:
B0 : rad T = rad (frequency in radians per second)
Ts
s
B0 / 2 : rad T 1 = 1 (frequency in Hz)
Ts r