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Describe the principal structural difference between amylose and cellulose and then between glycogen and cellulose.
Which of the following molecules can hydrogen bond to another of the same compound?
Explain why compound A reacts 9000 times faster than compound B at 0 degrees, but the two compounds react at the same rate at 103 degrees.
When a sample is burned in oxygen, 4.822 g of CO(2) and 1.650g of H(2)O are obtained. What is its simplest formula?
The compound hexane, CH3-CH2-CH2-CH2-CH2-CH3 has how many tertiary hydrogens?
Its optical rotation in sodium line (light wavelenth) was -5.0 degrees at 25 degrees Celsius. What is the specific rotation of the (-)-epinephrine?
The volume occupied by 1 micromole of liquid benzene and the volume occupied by 1 megamole of benzene as a vapor at STP (assume an ideal gas).
Consider the possible isomers of chlorotoluene. Which of the possibilities will result in only two types of aromatic protons by NMR?
Would you expect sodium ions (Na+) to be able to pass easily into a cell through bi-layer membrane wall? Why or Why not?
Are there differences between having electron-donating groups and electron-withdrawing groups on benzoate esters? Why or why not?
In this problem the H NMR spectrum of styrene oxide shows that protons 1, 2, and 3 all have different chemical shift values.
What actually causes the evaporation of water and how can this be calculated in this instance? What is the vapor pressure of the water?
Explain why the 3-pentanol 13C-NMR spectrum contains three peaks while the trans and cis-2-pentene spectra contain five peaks.
A proton that absorbs radio frequency radiation at higher field strength will appear _____ in a 1H NMR spectrum.
Empirical Formula b) isomerism and what conclusions can you draw from the following observations about the chemical nature of the organic liquid D?
Name the principal enzymes taking part in this bioconversion. To which class of enzymes do they belong to?
Draw structural formulas for all possible products of the dichlorination of cyclohexane. Include cis-trans isomers.
You are presented with three identical metal containers of about 5 litres capacity, each about half full of fuel.
The following molecules are known Persistent Organic Pollutants, which are globally monitored & regulated.
When measured in a 1.00 cm cuvet, a 9.45×10-4 M solution of species A exhibited absorbances of 0.155 and 0.687 at 450 nm and 725 nm.
Identify and draw the structures of two simpler compounds, one of which should be a carboxylic acid, from which you could make lidocaine.
In organic chemistry, a functional group is an atom or group of atoms that determines the compound's characteristics.
How should a professional emergency responder be concerned about the following routes of radiation exposure for a person on scene and a person downtown?
Describe the physics behind the operation of these solar photovoltaic devices and then discuss how their efficiencies are determined.
Calculate the conditions needed to liquify propane at room temperature given that deltaH vaporization = 19.0 kJ/mol at 231.1 K.