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Explain why does acetate ion not attack the intermediate bromonium ion to give the 5-acetoxy-6-bromo compound in the brominatin of cholesteral?
30 mol H2 and .30 mol I2 are mixed in a 1.00L container, and the reaction forms HI. If Kc=.49 for this reaction, what is the equilibrium concentration of HI. I2(g) + H2(g) --- 2HI(g)
The total vapor pressure for a mixture with liquid mole fraction XA = 0.60 is 52.7 kPa. The vapor phase mole fraction is YA = O. 725. The excess molar enthalpy is +260 J mol-1. Calculate the molar Gibbs energy of mixing and the molar Entropy of mix..
Write a complete mechanism for the addition of diethyl malonate to ethanal in the presence of base to form a beta-hydroxy ester.
A 6.11g sample of Cu-?Zn alloy reacts with excess aqueous HCl producing 1.26 L of H2(g) at 22.0 ?C and 728 torr. Since only the Zn portion of the alloy reacts, calculate the percent Cu in the alloy.
Starting with the ideal gas equation, illustrate how the density of a vapor may be determined by the vapor density method
When 24.0 g of glucose (a nonelectrolyte) are dissolved in 500. g of water, the solution has a freezing point of -0.47°C. What is the molar mass of glucose? Kf of water is 1.86°C/m.
A sample of 2.0 grams of ammonia was placed in a 25.0 ml container and heated to 300 degrees C. After equilibrium was reached, the concentration of hydrogen was 1.58 moles/liter. What is the value of the equilibrium constant at 300 degrees C for t..
Calculate the maximum number of grams of phosphorus trichloride that could be formed from 44.1 grams P subscribe 4.
Calculate the standard entropy change for the reaction 2Na(s) + Cl2 (g) --> 2NaCl (s) using the data from the following table: Substance Change in h Change in G S degrees 0.00 0.00 51.30 0.00 0.00 223.1 -411.0 -384.0 72.10
in an experiment a piece of copper is weighed 40.0 g and allowed to react with oxygen. rm 2cus rm o2g to rm 2cuos how
Which of the following correctly describes Tollens' reagent? a. a solution of silver nitrate in water b. a solution of silver nitrate and ammonia in water c. a solution of silver nitrate in hydrochloric acid d. none of the above correctly describe..
What are the three possible nuclear arrangements of N2O. Which one allows for a "good" Lewis structure. This isnt the one nature prefers. Which of the two "imperfect" arrangments is superior
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