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For the decomposition of an antibiotic in aperson with a normal temperature of 98.6 F, k=0.0000250 s^-1. For a person with a fever of 102.1 F, k=0.0000259 s^-1. If the sick person must take another pill when 48% of the first pill has decomposed, determine how many hours (to the tenths of an hour) the patient should wait to take another pill.(Hint: First determine the order of the kinetics the nuse the appropriate equation to solve for the time.)
How many grams of Na2SO4 (FM 142.02) should be added to how many grams of sulfuric acid (FM 98.08) to give 1.35 L of buffer with pH 2.80 and a total sulfur (= SO42- + HSO4- + H2SO4) concentration of 0.200 M
The current concentration of carbon dioxide in the atmosphere is 378 ppmv. Annual anthropogenic additions to the atmosphere are about 8 Gt (as C) of which about 4 Gt are removed into the oceans and terrestrial environment.
If 352 g of magnesium reacts with excess oxygen to produce 296 g of magnesium oxide, what is the percent yield for the reaction?
A solution was made by taking 1.250g of KMnO4 and dissolving it in enough water to make 1.000 liter of solution. This solution was used to titrate H2C2O4·2H2O, a very pure substance. In acidic media, the reaction is.
Draw the structure of a DNA nucleotide represented by the abbreviation "C." Do not include formal charges on the phosphate group.
What is the pressure at a closed faucet on the second floor, 5 m above where the water enters the house. (b) How high could a faucet be placed before no water will come out of it
calculate the number of grams of potassium chloride kcl that will be formed by the decomposition of 6.45 grams of
When chromium crystallizes, it forms body-centered cubic cells. The unit cell edge length is 288.7 pm. Calculate the density of chromium
A certain reaction has an activation energy of 60.0 kj/mol and a frequency factor of A= 3.10×1012 M^-1s^-1 . What is the rate constant k , of this reaction at 30.0 Deg celsius?
If all the pyruvate is metabolized by the glyoxylate bypass (assume that 50% of the pyruvate enters in the citrate synthase reaction and 50% during the bypass), what would be the labeling pattern and its distribution in the oxaloacetate?
An atom is ionized so that it has only one electron. When the electron drops from the n = 4 shell to the n = 1 shell, an X-ray of wavelength 101.20 pm is emitted. What is the atomic number?
When potassium carbonate is added to the remaining solution, a precipitate occurs. Which ions were present in the original solution? Write net ionic equations for the formation of each of the precipitates observed.
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