Question

Explain why you did not obtain a 100 % yield. NOTE: “Human error” cannot be used as an explanation, we are looking for systematic answers that would always apply.

Answer #1

Evaluate each integral in and explain why you used the method
you did.
∫ ???(? + ?2) ??, where ? is the perimeter of a
square with
vertices?1 =?+?, ?2 =−?+?, ?3
=−?−?, and ?4=?−?.

#2. Add a heading in bold: Explanation. In one paragraph,
EXPLAIN why did you believe that theory is important (about 50
words in at least 3 sentences).
#3. Add a heading in bold: Example. In a second paragraph, give
an EXAMPLE of specific research described in the textbook to help
explain your answer (about 50 words in at least 3 sentences). NOTE:
An example is a story about the concept that depicts the research
you chose from the textbook. Your...

Explain why you cannot convert the following If...Then ...ElseIf
statement into a Select Case statement: If dblTemperature = 100
Then intX = 0 ElseIf intPopulation > 1000 Then intX = 1 ElseIf
dblRate < .1 Then intX = -1 End If

Imagine you are living 50 years in the future.
Neuroscientists have completely mapped the human brain. Scientists
and doctors now know exactly how causation in the brain works and
can predict human behavior with 100% accuracy. They can tell by
looking at brain scans and the chemistry of your brain what exactly
prompted you to act the way you did in a given situation. In every
case, they find that it is a combination of the situation you are
in...

Explain briefly why recrystallization can never result in 100%
mass recovery even if you used pure material. Also explain why mass
recovery is greater if you cool to 0 degrees C rather than room
temperature.
Explain very briefly why mass recovery is reduced if you use an
excess amount of boiling solvent and why washing product crystals
with excessive amounts of solvent especially warm solvent can
result in reduced mass recovery.

Explain what did you learn about Z score ? Why is it important
?
Based on Emprical Rule , where would like your relative
positioning be for your statistic grade ? why ?

Solve (In the proof, explain each step explaining why you did
that. Explain as if you were teaching a class)
1. Prove that if (G,*) is abelian, then (G/H, #) is abelian
2. If F is homomorphism from (G,*) to (G',#), then prove that
e=identity in G is an element in Kernel of F and that Kernel of F
is normal (you do NOT need to prove all the properties of
subgroup)
3. If F is a homomorphism from (G,*)...

Oxidation of Methoxyacetophenone to Anisic Acid
1. Why did you lower the pH of the reaction mixture to 2, rather
than to some higher pH?
4. Why did we use bleach as our source of chlorine, rather than
chlorine itself?
5. Iodine could have been used instead of chlorine. How much
iodine would have been required to do the reaction is we use 1
gram?

COMPUTE THE ELECTRIC QUADRUPOLE MOMENT OF 57-Ni. EXPLAIN
THE METHOD YOU USED TO DO SO IN DETAIL (PLEASE DO NOT JUST PROVIDE
THE CALCULATION; AT LEAST WRITE DOWN A SHORT
EXPLANATION).
NOTE: As Niquel has a spherically symmetric nucleus we
expect to get a quadrupole moment close to zero; You should get Q =
-0.055

Please show all work for
the problem. Explain your steps and why you did it so i can
understand how you got the answer please.Any calculation that
cannot be done mentally must be written down, no matter how trivial
the calculation might be.
Let v=〈10, 11, −2〉and u=〈0, 3, 4〉. Compute:
The cosine of the angle
between v
and u
also
the vector projvu

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