Galactose is a simple sugar formed when lactose, a carbohydrate in milk, is hydrolyzed. Individuals with galactosemia, a rare inherited disorder, lack an enzyme needed to metabolize galactose, and must avoid cow's milk and all products derived from cow's milk. Galactose is a stereoisomer of glucose. Galactose exists primarily in a cyclic form - B-D-galactopyranose - in solution. HO HO HO 2 OH OH galactose Draw the conformational isomers of B-D-galactopyranose and identify the more stable conformer. Upload your answer in the form of a PDF document.

Complete the reaction

Given the following: [H3O+] = 5.112 x 10-13, please calculate the pOH.(Note please use 3 sig. figs for your answer.)

Decide whether each of the molecules in the table below is stable, in the exact form in which it is drawn, at pH=1. If you decide at least one molecule is not stable, then redraw one of the unstable molecules in its stable form below the table. (If more than one molecule is unstable, you can pick any of them to redraw.) OH HO Ostable of Ounstable OH Ostable Ounstable Ostable Ounstable O stable Ounstable : G Π P alo.

Identify the best conditions to complete the SN2 reaction shown below. -OO 65 Question 55 of 56 Na A) CHI, THF B) CH.CH₂I, THF C) CHILI, THF D) CHILI, CH,OH E) CHI, CH3OH

Decide whether each of the molecules in the table below is stable, in the exact form in which it is drawn, at pH = 11. If you decide at least one molecule is not stable, then redraw one of the unstable molecules in its stable form below the table. (If more than one molecule is unstable, you can pick any of them to redraw.) OH OH Ostable stable Ounstable Ounstable OH O stable OH Ounstable Click and drag to start drawing a structure. O stable Ounstable X S D C

a) Draw the product(s) of the acid/base reaction. b) Will the equilibrium lie left or right?

Table 4.1 Classification tests for hydrocarbons Reagent Cyclohexane (alkane) 1. Bromine in CHC13 2. Bromine in CHC13 + light 3. Permanganate solution 4. Concentrated sulfuric acid (this test is not conclusive) no change in color, negative test orange-red changes to light yellow, positive test ignore Cyclohexene (alkene) Not necessary to perform this test for alkenes because alkenes react readily at room temperature and they do not require light ignore Toluene (aromatic) ignore