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Question
Can proton nuclear magnetic resonance (1H NMR) spectroscopy be used to distinguish between meso- and (6)-stilbene dibromide? Explain why or why not.
Fungal laccase, a blue protein found in wood-rotting fungi, is 0.390% Cu by mass. If a fungal laccase molecule contains 4 copper atoms, what is the molar mass of fungal laccase? Please provide the correct number of significant figures!
How many grams of NaOH and H2O are required to prepare 100 g of a 28.7% NaOH by weight solution?
What mass of NaOH is needed to precipitate the Cd2+ ions from 44.0 mL of 0.500 M Cd(NO3)2 solution?
Hemoglobin (Hb) is responsible for hanging on to oxygen in your blood as Hb(O2)4. CO poisoning works by competing for the same binding site that oxygen would normally occupy, as in the equilibrium below:
Everything we do in a business environment is done with a strategic purpose. Your taking this course is to complete a degree program
19mg of 9-fluorenone is dissolved in 5ml of diethyl ether. the resulting organic solution is extracted with 10ml of
A solution is prepared by combining .025 mole CaCl2 and .015 mol Pb (NO3)2 and adding water to make 1L of solution. Will a precipitate of PbCl2 form in this solution
Magnesium sulfate can be obtained at a drugstore as Epsom salts. The monohydrate is found as the mineral kieserite (MgSO4 * H2O, 138 g/mol).
During studies of the reaction below, 2 N2H4(l) + N2O4(l) ? 3 N2(g) + 4 H2O(g) a chemical engineer measured a less-than-expected yield of N2 and discovered that the following side reaction occurs
If a reaction vessel initially contains only CO and NH3 at concentrations of 1.00 M and 2.00 M, respectively, what will the concentration of HCONH2 be at equilibrium?
A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 18.0 g to 100°C in boiling water and then dropped the hot coin into 26.5 g of water at T = 16.5°C
One liter of 1M acetate buffer at pH = 4.5 is mixed with 600 ml of .5M acetate buffer at pH = 4.8 and then one liter of HCl (0.1M) is added. What is the pH of the final solution?
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