Use of analytical tools to deduce structural
Mass spectrometry (MS)
Infrared (IR) spectroscopy
Nuclear magnetic resonance (NMR) spectroscopy
Nagel: War and
What is the moral basis of war restrictions [jus in
Can we create a rational basis for war restrictions?
US soldiers killed about 500 unarmed civilians in
March of 1968.
Women, children and the
CHE 211-Problem Set 6
A tank partition is used to store water (=1000kg/m3) and nitric
acid. The partition is made of a 2 m-wide plate with 0.5m-wide
and 2 m-high door held in place by hinge at the top and
retaining force at the bottom as shown. The spe
CHE204 Lecture #4
What is Spectroscopy?
Interaction between EMR and matter
Different radiation type = different energy = different
Figure. Electromagnetic spectrum.
(Colour Therapy Healing Corporation)
Introduction to chromatography
Commonly used techniques:
Physical separation and purification of a
compound or compounds within a
Greek - color writin
Q1) Calculate the number of liters per year of liquid that can be transported through the
following pipe sizes assuming a constant liquid velocity of 1 meter/sec.
a) 3 cm ID
b) 5 cm ID
c) 25 cm ID
d) 50 cm ID
Comment on the magnitude of the result and the
CHE 249 Fall 2014
Present Worth/Annual Worth, Pay Back Period
1. There are two choices for a tunnel borer:
Tiger: FC = $180,000, fuel costs = $30/hour
Crusher: FC = $250,000, fuel costs = $28/hour
Both operate 12 hours per weekday for 50 weeks/
A Refrigeration Example
A freezer is to be maintained at -10C; and the refrigeration requirement is 1200 kW.
Cooling water is available at 15C. The minimum approach is 5C. For R-134a, what is
the coefficient of performance, and what is the mass flow of re