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Depict Fisher projections for the following (a) (R)-2-chloropentane (b) (2R,3S)-2,3-dichlorobutane (c) (S)-2-Bromo-2-pentanol (d) (2S,3S)-3-bromo-2-butanol & (e) (S)-2-pentanol
Erythrocytes phosphorylate glucose to glucose 6-phosphate with the help of the enzyme hexokinase instead of glucokinase. Hexokinase has a Km = 0.055 mM. How low would the blood glucose concentration have to fall to decrease the rate of glucose pho..
At room temperature benzoic acid dissolves in the less polar solvent, ether, but not very much in the more polar solvent, water. However, the deprotonated species, the benzoate ion, dissolves in water but not ether
What is the concentration (in M) of the hydroxide ion when 19.4 mL of a 0.712 M solution of sodium hydroxide is combined with 15.9 mL of a 0.703 M solution of barium hydroxide? Assume the volumes are additive
Radium-226 (atomic mass = 226.025402 amu) decays to radon-224 (a radioactive gas) with a half-life of 1.6x10^3 years. What volume of radon gas (at 25 C and 1 atm) is produced by 22 grams of radium in 4.5 days.
Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is radioactive, with a half-life of 28.1 yr. Calculate how long it will take for 0.600 g of the isotope to be reduced to 0.310 g by decay.
A 1.53L sample of a gas is at a pressure of 5.6 x 103Pa. If the pressure is changed to 65 mmHg, what will be the new volume of the gas
the pressure in a sealed plastic container is 108 kpa at 41c. what is the pressure when the temperature drops to 22c?
determine the number of representative particles in each substancea. 250 mol of silverb. 8.56 x 10-3 mol of sodium
Acetylene gas (C2H2) burns with oxygen in an oxyacetylene torch to produce carbon dioxide, water vapor, and the great heat needed for welding metals. The heat of combustion of acetylene is 1259 kJ/mol.
To what volume should you dilute 59.5ml of a 4.95M KI solution so that 26.0ml of the diluted solution contains 3.45g of KI
2c2h6 7o2---gt 4co2 6h2o if the reaction produces 2.75 mol of h2o how many grams of co2 are also
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added). The Ka for HOCl is 3.0 x 10-8 M.
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