Compare the syntheses of magnetite nanoparticles using
thermal decomposition and by everyday chemicals in terms of...
Compare the syntheses of magnetite nanoparticles using
thermal decomposition and by everyday chemicals in terms of
starting materials, reaction conditions, particle characteristics,
and environmental considerations.
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32. Compare and contrast dendrimers with block copolymer
micelles, globular proteins, inorganic nanoparticles in terms of
attributes and likely utility in the following applications: (a)
drug delivery; (b) homogenous catalysis; and (c)
solubilization..
Due to our
reliance on chemicals to solve everyday problems, we live in a
world in which potential teratogens are becoming more abundant.
Identify and research at least three items in your home that may
potentially be harmful to an unborn child and then describe
potential teratogenic effects of each item.
The thermal decomposition of dimethyl ether has been studied by
measuring the increase of pressure with time
Me2O = CH4 + H2+ CO
The following data were obtained
Time/sec 390 780 1195 2000 3155
Pressure increase/Torr 96 179 250 363 467
Show that the reaction is first order and find the rate constant
(hint: Include P0 as a pramater as it is unknown)
The thermal decomposition of NO2 gas at elevated
temperatures occurs according to the following reaction:
2 NO2 (g) → 2 NO (g)+O2 (g)
Experimental data for this reaction at 330°C are listed in the
table: Concentration of NO2 as a Function of Time at
330°C
Time (s)
[NO2] (M)
0
1.00 × 10−2
60
6.83 × 10−3
120
5.18 × 10−3
180
4.18 × 10−3
240
3.50 × 10−3
300
3.01 × 10−3
360
2.64 × 10−3
Prepare and turn...
you wish to detemine the reaction order and rate constant for
the following thermal decomposition reaction 2AB2- -> A2 + 2B2
A) what data wolud you collect? B) how would you use this data to
determine whether the reaction is zero, first or second order ? C)
Describe how you would determin the value of the rate
constant?
2H2S(g)<---> 2H2(g) + S2(g)
The value of Kc for the thermal decomposition of hydrogen
sulfide is 2.2x10^-4 at 1400 K. A sample of gas which [H2S]=4.60 M
is heated to 1400 K in a sealed vessel. After chemical equilibrium
has been achieved, what is the value of [H2S] in M? Assume no H2 or
S2 was present in the original sample.
Some examples from everyday life of thermal radiators
include
Group of answer choices
Humans
The Sun
Lasers
Accelerating electrons
Incandescent light bulbs