In “When Lilacs Last in the Dooryard Bloom’d”, what image does Whitman NOT use as a metaphor for the death of Lincoln?  

Level 2 – Separatory Chemistry Where does the following molecule end up at the end of this separation scheme?

Level 1 – Base Stability Which of the following compounds would be considered the most stable lewis base?

Level 2 – Acid/Base Extractions Which of the following compounds would not be partitioned  into the aqueous layer using 5% NaHCO3 (aq) and Ethyl Acetate (org) during an the base extraction?

Level 1 – Carbon Labels Select the appropriate naming or labeling for the following molecule given the choices below.  

What do the servants (slaves) do as they are preparing their master’s dinner and why?

Collecting Reactants – Level 2 A student is attempting to collect all of their reactants for the nitration of methyl benzoate lab.10.10 mL of methyl benzoate completely reacted with nitric acid to produce methyl 3-nitrobenzoate using sulfuric acid as a catalyst.  What is the minimum volume (mL) of nitric acid required to add one stoichiometric equivalent of nitro group to the starting material methyl benzoate? Given: Methyl benzoate | C8H8O2 | M.W. = 136.15 g/mol | Density = 1.08 g/mlNitric acid | HNO3 | Aqueous Concentration = 15.9 M Methyl 3-nitrobenzoate | C8H8NO4 | M.W. = 181.15 g/mol SELECT THE CLOSEST ANSWER POSSIBLE.

Solve the system by back substitution. 1.

Identify the row operation that produces the resulting matrix. →

Solve the problem by writing and solving a suitable system of equations by Gauss-Jordan method. Show your work and state the final answer. Linda invests $25,000 for one year. Part is invested at 5%, another part at 6%, and the rest at 8%. The total income from all 3 investments is $1600. The income from the 5% and 6% investments is the same as the income from the 8% investment. Find the amount invested at each rate. 1.