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Michaeal Warren, a 45 years old movie director, has abdominal pain cramps as well as diarrhea. He has been taking ampicillin for the bacterial infection he acquire from shooting in a remote jungle a month ago. He is as well reported of having fever in the last two days.
Explain what type of bacteria does he have:
(A) Streptococcus Lacobacillus
(B) Propionilbacterium
(C) Clostridium
(D) Escherichia Salmonella
(E) Enterobacter
In each of the following acid-base reactions, identify the bronsted acid and base on the left, and their conjugate partners on the right. (a) CH3CO2H(aq) + C5H5N(aq)= [CH3CO2]-(aq) + C5H5NH+(aq)
The sulphate ionis trapped as water-insoluble BaSO4. The quantity ofBaSO4 obtained is 0.2070g. What is the mass percent ofsaccharin in the sample of sweetener
phosphoric acid is a commonly used biological buffer because the pka for dissociation of its second proton is near
Calculate the energy produced when 15 grams of liquid methanol (CH3OH) is completely burnt in air to produce carbon dioxide gas
The mole fraction of hexane in a pentane-hexane solution is 0.750. a. Calculate the partial pressures of pentane and hexane in the vapor. b. Calculate the mole fraction of pentane in the vapor in equilibrium at 25° C with this solution.
hydrogen iodide hi decomposes in the gas phase to produce hydrogen h2 and iodine i2. measuring the value of the rate
A student heated 1.0L of ethanol (density 0.789 g/L) with 1.0 mL ethanoic acid (density 1.049 g/mL) with a sulfiric acid catalyst and noticed a vinegar-like smell to the product as well as a fruity medicinal smell.
The titration is monitored with a potentiometer using a SCE reference electrode (Eref= 0.241V). the solution is buffered at ph=4.00.
The energy of a photon is 9.61 x 10 ^ -20 J . What is its wavelenght( in nanometers)? Enter your answer in scientific notation
A pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 8 g of coffee beans?
A segment of a DNA strand has base sequence of C-G-A-T-T-G-C-A. What is the base sequence of the other complementary strand of the double helix
Five constituionally isomeric monochlorides of molecular formula c6h13cl are formed (along with a mixture of dichlorides, trichlorides, etc.) What is the most reasonable structure for the starting alkane? why?
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