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A suspected case of ingestion of the organophosphate malathion has entered the emergency room. A STAT pseudo cholinesterase produced a very low result. Prior to the initiation of therapy, an erythrocyte cholinesterase is drawn and sent to a reference laboratory. They report a normal value. How do you explain this disparity? How would you demonstrate your explanation?
Calculate the concentration of Cu2+ in a solution prepared by adding 5.2 x 10 -3 mol of CuSO4 to 0.450L of 0.38 M NH3.
if the partial pressure of oxygen drops below 100 mmhg passengers become drowsy. if this happens oxygen masks are
90.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.5.
Write the condensed structure of the primary alcohol (RCH2-OH type) with the general formula C4H10O.
A 1.5991 g sample of a hydrocarbon is combusted to give 1.6918 g of H2O and 5.1661 g of CO2. What is the empirical formula of the compound
Describe the role of the citric acid cycle as a central metabolic mechanism. Explain what happens to the cells' abilities to oxidize acetyl CoA when intermediates of the cycle are drained off for amino acid biosynthesis.
Suppose a solution contains 0.25 M Pb2 and 0.49 M Al3 . Calculate the pH range that would allow Al(OH)3 to precipitate but not Pb(OH)2
Butadiene, C4H6(used to make synthetic rubber and latex paints) dimerizes to C8H12 with a rate law of rate=0.038L/(mol*s)[C4H6]^2. What will be the concentration of C4H6 after 2.0 hours if the initial concentration is 0.044M?
isolate two of three compouds given 1,2,4,5- tetrachlorobenze, o-toluic acid and 1,4-dibromobenzene
Derive parameters of the critical point for the Dieterici equation of state: p(V - b) = RTe^(-a/RTV). A sample of nitrogen of mass 3.12 g at 23 C is allowed to expand reversibly and adiabatically
Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.50 M B(aq) with 0.50 M HCl(aq). (a) before addition of any HCl
Explain in detail the observed absorption maxima (from the UV-vis spectrum) for the following compounds:
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