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Which of the following anions is the most nucleophilic in an SN2 reaction? A) h2c=ch- B)ch3ch2- C)ch-triplebonds-C A) B B) C C) A
the peptide Phe-Val-Lys-Ser using the appropriate protease in a phosphate buffer solution at pH=7. What two species would actually constitute the phosphate buffer?
A person inhales air richer in O2 and exhales air richer in CO2 and water vapor. During each hour of sleep, a person exhales a total of 300. L of this CO2-enriched and H2O-enriched air.
Compute the equilibrium constant for the reaction between Sn2+ (aq) and Cd(s)
An industrial chemist 2.00 moles each of h2 and co2 in a 2.00 L container at constant temperature of 800 degree celcuis. this reaction occurs:
If you dissolved 0.95g of salt in 100ml distilled water, what is the concentration of salt in this solution, in % wt/vol
What is the final volume of a balloon that was initially 500.0 mL at 25 °C and was then heated to 50 °C
A 370. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 49°C.
(a) molarity of the solution resulting from dissolving 51.8 g of silver nitrate in enough water to give a final volume of 364 mL (b) volume in liters of 0.494 M manganese(II) sulfate that contains 53.1 g of solute
Apply Hess's Law to the 3 reactions above in order to determine the enthalpy of combustion of glucose 1. glucose + 6 ADP + 6Pi = 2 pyruvate
calculate the seperation in Energy between the ground state and the first excited state in which one electron occupies the state with n=7.
calculate the grams of solute needed to prepare each of the following solutions: a)2.00 L of a 5.00 M NaOH solution. b) 325 mL of a .100 M CaCl2 solution. c) 15.0 mL of a .500 M MiNO3 solution.
Which molecule is polar? Which of the following is not an ionic compound? Which of the following is not an ionic compound?
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