When sythensising 4-bromo- 2-chloroacetanilide from 4-
bromoacetanilide, the first step was to dissolve the 4-
bromoacetanilide...
When sythensising 4-bromo- 2-chloroacetanilide from 4-
bromoacetanilide, the first step was to dissolve the 4-
bromoacetanilide in HCL and acetic acid the mixture is heated
gently. why is it important to heat gently? That is,
explain why it may be problematic to heat the mixture more
aggressively, e.g., above 100
Let the population have N=7 units, with {(unit,value)} =
{(A,-1),(B,+1),(C,-2),(D,+3),(E,-4),(F,+5),(G,-6)}. The design is
as follows: first...
Let the population have N=7 units, with {(unit,value)} =
{(A,-1),(B,+1),(C,-2),(D,+3),(E,-4),(F,+5),(G,-6)}. The design is
as follows: first choose A or B at random; if A then choose from
{C,D} at random, if B then choose from {E,F,G} at random. 1) Find
the first-order inclusion probabilities (note that the sample size
n is fixed at 2).
Verify (show numerically for this example) that the
Horvitz-Thompson estimator is unbiased for the population total.
(Hint: find the probability of each sample and the value...
1. How many electrons could occupy a subshell with the following
quantum numbers?
a. n=2, l=1...
1. How many electrons could occupy a subshell with the following
quantum numbers?
a. n=2, l=1
b. n=2, l=0, ml=0
2. How many orbitals are described by each of the below
combinations of quantum numbers?
a. n=3, l=3
b. n=4, l=2, ml=2
3. How many milliliters of 0.100 M HNO3 are needed to neutralize
the following solutions?
a. 34.7 mL of 0.775 M NaOH
b. 58.5 mL of 0.0100 M Al(OH)3
4. How many milliliters of 0.100 M NaOH are...