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Tests on human subjects along the East Coast of the United States in 1965 and 1966, following the era of atomic bomb testing, revealed quantities of about 1.71 pCi of plutonium radioactivity (alpha radiation) in a test subject. How many disintegrations per second does this level of activity imply?
provide reaction mechanisms for the formation of each of these byproducts and specify whether the mechanisms you write are SN1, SN2, E1, E2, or none of these. explain why you would expect bisulfate to be a good leaving group for substitution or eli..
Calculate the pH of 0.500L of a buffer solution composed of 0.20 M butyric acid (CH3(CH2)2)2COOH, Ka = 0.000015) and 0.10 M sodium butyrate, (NaCH3(CH2)2COO).
Determine whether each of the following causes an increase or decrease in the activity of the electron transport chain. 1. High NADH concentration
The following three solutions are mixed: 90.0mL of 0.110M Na2SO4 , 45.0mL of 0.250M ZnCl2 , and 100.0mL of 0.20M Ba(CN)2. What ionic compounds will precipitate out of solution? Express as a chemical formula.
Calculate the pressures in the flask in parts a and b (in torr) if the atmospheric pressure were instead 675 torr.
Describe simple chemical tests that would enable you to distinguish between the following sets of compounds. Write equations for any chemical reactions
Polycyclic aromatic hydrocarbons (PAHs) are a class of organic chemicals associated with the combustion of fossil fuels. Undeveloped areas may have total PAH soil concentrations of 5 µg/kg
if 646 mL of gas at 280 K Is heated to 297 K, what will the new volume be? using charles's law
A 34.32-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 96.44 ml.
(a) Can you suggest a reason that accounts for this unusual behavior? (b) Suggest an experiment with labeled compounds that would confirm this mode of attack.
when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?
A feed stream containing 2.00 mol/min of butane (C4H10), and a feed stream containing 130.0 mol/min of air are fed into a reactor. The butane combusts completely according to the following reaction.
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