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A compound A has prominent infrared absorptions at 1050, 1786, and 1852 cm-1 and shows a single absorption in the proton NMR spectrum at ? 3.00. When heated gently with methanol, compound B, C5H8O4, is obtained. Compound B has IR absorptions at 2500-3000 (broad), 1730, and 1701 cm-1, and its proton NMR spectrum in D2O consists of resonances at ? 2.7 (complex splitting) and ? 3.7 (a singlet) in the intensity ratio 4:3. Give the structures A and B, omitting stereochemistry.
what are the practical properties of acetone and detailed explanation of its properties.
Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (CH3)3N=4.19 at 25 degrees C
A compound contains only nitrogen and hydrogen and is 87.4% nitrogen by mass. A gaseous sample of the compound has a density of 0.925 g/L at 690 torr and 110 C.
How would I list the following aldehydes in terms of increasing reactivity ClCH2CHO, CH3CHO, Cl3CCHO, and Cl2CHCHO?
How do you write orbital diagrams in an a (arrow diagrams) for the following elements: 26Fe, 34Se, 36Kr I d
An unknown gas composed of homonuclear diatomic molecules (its structure is X2) diffuses at a rate that is 1.07 times that of O2 at the same temperature. What is the identity of the unknown gas
A student determines the amount of tetrachlorethylene in a contaminated well water using a purge and trap technique. The student takes 150.0 mL of the well water, spikes the well water with 100 microlitres of 50 ng carbon tetrachloride/mL and purg..
Carbonic acid is an intermediate step in the transport of CO2out of body. If the pH of blood is 7.4, what percent is carbonic
What is the function of EACH of the following components in a membrane phospholipid? Fatty Acids, Glycerol
An excess sample of solid Ag2SO3 is added to 100 mL of water. After equilibrium is achieved between the solid and its aqueous ions the silver ion concentration is found to be 2.175e-05 Use this information to find Ksp for Ag2SO3
You conduct an experiment where N2 is collected over water in a 2.12 L flask at 23.oC. At the conclusion of the experiment, the total pressure in the flask is 652. torr. What is the pressure of N2 in the flask?
What is the effect of raising the temperature or increasing the carrier gas flow rate on the ability to resolve two closely
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