Organic Chemistry Answers

In this experiment, acetaminophen is first combined with the sodium hydroxide/ethanol solution, followed by the addition of 1-iodobutane. Explain briefly the purpose of this step. Would the SN2 still proceed if all reagents were added at the same time? As part of your answer, include a comparative energy diagram illustrating the reaction with and without NaOH.

Calculate the change in heat when 15.00 g of water vapor (steam) at 100.0°C condenses to liquid water and then cools to 27.00 °C.

There is a diagram of a hydrocarbon whose structure is a five-membered ring.
Spell out the full name of the compound.

When five atoms of iodine reacts with one atom of sulfur, what would be its compound formula and name? *

How does using primary and secondary alcohols affect the disastereomers formed in a streaker reaction. Why would water be a good solvent to use in a streaker reaction and how does temperature affect the products of a streaker reaction

In this investigation, you will be given a sample of a weak monoprotic acid with an unknown concentration and a standardized 0.1M NaOH solution. You are to design and set up a lab for finding the Ka of the acid.

For the prelab your task is to develop a strategy for finding the Ka of this weak acid. Your Strategy must include the following:

· The chemical equation for the equilibrium system that will help you determine the Ka

· The equilibrium law expression for the above chemical system

· The algebra and an ICE table that you will use to calculate the Ka of this unknown acid

· List of main steps that you will follow to experimentally determine the Ka of this unknown acid

In this experiment, acetaminophen is first combined with the sodium hydroxide/ethanol solution, followed by the addition of 1-iodobutane. Explain briefly the purpose of this step. Would the SN2 still proceed if all reagents were added at the same time? As part of your answer, include a comparative energy diagram illustrating the reaction with and without NaOH.
Refer to the ‘Formatting Equations and Schemes’ document for information on how to present your energy diagram.

You are responsible for preparing p-guaiacol, a flavoring agent. Your supervisor asks you to make 8.1 g of the compound and you can expect a yield of 77 %. You need to calculate the reagent quantities necessary and choose to use the stoichiometry you learned in experiment 3 of CHEM 266L.


(i) 1 M NaOH/Ethanol is not available, what mass of NaOH(s) should be used instead?

(ii) What mass/volume of hydroquinone should be used?

(iii) What volume of iodomethane (CH3I) should be used?

(iv) Would the SN2 still be possible if methanol and the electrophile below was used instead of p-guaiacol and iodomethane? Briefly explain your answer.

Outline a reaction scheme to show how you would synthesize trans-2-undecene starting from acetylene and other appropriate carbon-containing compound(s). [Include all reagents at each step and show structure of all intermediates leading to your product].