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List 2 penicillins that are classified as extended spectrum and relate their structure to their activity as well as their acid and ß-lactamase stability and potential side effects.
Oleum or fuming sulfuric acid available commercially in concentrations ranging from 20 to 99.9% sulfur trioxide.
Sucrose, C12H22O11, is a nonelectrolyte; hypochlorous acid, HClO, is a weak electrolyte; and ammonium chloride, NH4Cl, is a strong electrolyte.
Draw the structures of the byproducts of this type that would be derived from the reaction of the carbocation derived from 2-bromo2-methylbutane in ethanol.
A 100 mm diameter silicon wafer is oxidized completely. What is the thickness of the resulting SiO2 wafer? The molecular weight of Si is 28 g/mol and of SiO2 is 60 g/mol.
Balance the following redox equations. Identify the oxidation half reaction and the reduction half reaction.
A graduated cylinder contains 133 of water. A 10.0 piece of iron (density = 7.86 ) and a 16.0 piece of lead are added. What is the new water level in the cylinder?
A 50.0 mL sample of aqueous Ca(OH)2 requires 32.66 mL of a .812 M nitric acid for neutralization. Calculate the concentration (molarity) of the original solution of calcium hydroxide.
Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies with 4sigfig
calculate the volume, in liters, occupied by 3.25 moles of Cl2 gas at 1.54 atm pressure and a temperature of 213 degrees celcius?
An 1.07 mol sample of carbon dioxide gas at a temperature of 8.00 oC is found to occupy a volume of 22.7 liters. The pressure of this gas sample is
What mass percent sucrose (C12H22O11)should be present in an aqueous sucrose solution to raise the boiling point to 100.00 degrees celsius at this pressure
Which of the following factors does not affect the velocity of an enzyme catalyzed reaction
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