A risk-benefit analysis on the use of isocyanate in paints for an automotive factory worker should be done. Concept Introduction: Risk benefit analysis is a process by which the pro and cons of designing a product is evaluated. Every product will incur a certain risk and a certain benefit. It is advisable to make a product only when the benefits outweigh the risks of making the product.
A risk-benefit analysis on the use of isocyanate in paints for an automotive factory worker should be done. Concept Introduction: Risk benefit analysis is a process by which the pro and cons of designing a product is evaluated. Every product will incur a certain risk and a certain benefit. It is advisable to make a product only when the benefits outweigh the risks of making the product.
Interpretation: A risk-benefit analysis on the use of isocyanate in paints for an automotive factory worker should be done.
Concept Introduction: Risk benefit analysis is a process by which the pro and cons of designing a product is evaluated. Every product will incur a certain risk and a certain benefit. It is advisable to make a product only when the benefits outweigh the risks of making the product.
(b)
Interpretation Introduction
Interpretation: A risk-benefit analysis on the use of isocyanate in paints for a hobbyist who is restoring his 1965 Mustang should be done.
Concept Introduction: Risk benefit analysis is a process by which the pro and cons of designing a product is evaluated. Every product will incur a certain risk and a certain benefit. It is advisable to make a product only when the benefits outweigh the risks of making the product.
3. Consider the compounds below and determine if they are aromatic, antiaromatic, or
non-aromatic. In case of aromatic or anti-aromatic, please indicate number of I
electrons in the respective systems. (Hint: 1. Not all lone pair electrons were explicitly
drawn and you should be able to tell that the bonding electrons and lone pair electrons
should reside in which hybridized atomic orbital 2. You should consider ring strain-
flexibility and steric repulsion that facilitates adoption of aromaticity or avoidance of anti-
aromaticity)
H H
N
N:
NH2
N
Aromaticity
(Circle)
Aromatic Aromatic Aromatic Aromatic Aromatic
Antiaromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic
nonaromatic nonaromatic nonaromatic nonaromatic nonaromatic
aromatic TT
electrons
Me
H
Me
Aromaticity
(Circle)
Aromatic Aromatic Aromatic
Aromatic Aromatic
Antiaromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic
nonaromatic nonaromatic nonaromatic nonaromatic nonaromatic
aromatic πT
electrons
H
HH…
A chemistry graduate student is studying the rate of this reaction:
2 HI (g) →H2(g) +12(g)
She fills a reaction vessel with HI and measures its concentration as the reaction proceeds:
time
(minutes)
[IH]
0
0.800M
1.0
0.301 M
2.0
0.185 M
3.0
0.134M
4.0
0.105 M
Use this data to answer the following questions.
Write the rate law for this reaction.
rate
= 0
Calculate the value of the rate constant k.
k =
Round your answer to 2 significant digits. Also be
sure your answer has the correct unit symbol.