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The Reaction Quotient

Q. Reactions between alcohol and carboxylic acid produce esters. However, these reactions do not go to completion, and instead, reach an equilibrium. The most commonly produced ester is ethyl acetate (CH3COOCH2CH3), which is used as a solvent in the pharmaceutical industry and to decaffeinate coffee and tea. Ethyl acetate is produced by reacting ethanol (the alcohol that gets you drunk) with acetate (the acid in vinegar), show in the reaction below: CH3CH2OH(l) + CH2COOH(l) <-> CH3COOCH2CH3(l) + H2O(l) Kc = 3.96 at 80 degree C At 80 C, 100 g of ethanol, 1oo g of acetic acid, 100 grams of ethyl acetate, and 100 g of water are added ti a 3.333 L vessel. What is Qc for the reaction? Answer to three significant figures. Will the reaction move to the left or to the right as it moves to equilibrium. Answer "left" or "right".

Solved • May 2, 2020

The Reaction Quotient

Q. Calculate Qc for the reaction.

Solved • Apr 27, 2020

The Reaction Quotient

Q. P4O6 (g)+2O2 (g)⇌2P2O5 (g) At a particular moment in time, pO2 is found to be increasing. Which of the following statements is true?

Solved • Apr 23, 2020

The Reaction Quotient

Q. Calculate the reaction quotient (Q) of this reaction.

Solved • Apr 19, 2020

The Reaction Quotient

Q. Write the reaction quotients for the following reactions. Do not include states in the reaction quotient. (a) 2 NO (g) + O2 (g) ⇌ N2O4 (g). (b) HCOOH (aq) ⇌ HCOO- (aq) + H+(aq)

Solved • Apr 18, 2020

The Reaction Quotient

Q. Kc for the reaction of hydrogen and iodine to produce hydrogen iodide. H2 (g) + I2 (g) ⇌ 2 HI (g) is 54.3 at 430 °C. Calculate the equilibrium concentrations of H2, I2, and Hi at 430 °C if the initial concentrations are [H2] = [I2] 0 M, and [HI] = 0.533 M.

Solved • Apr 18, 2020

The Reaction Quotient

Q. Consider the reaction Mg(s) + Fe^2+(aq) → Mg^2+(aq) + Fe(s) at 47°C, where [Fe^2+] = 3.10 M and [Mg^2+] = 0.310M What is the value for the reaction quotient, Q, for the cell? Express your answer numerically.

Solved • Apr 6, 2020