1 pts Question 6 2SO2(g) O2lg) 2SO3(g) AGO 141.8 kJ at 298K You are performing t

Question

1 pts Question 6 2SO2(g) O2lg) 2SO3(g) AGO 141.8 kJ at 298K You are performing the above reaction under the following conditions: Pressure of SO3 1.8 atm Pressure of SO2 0.134 atm Pressure of O2 8.09 atm What is the equilibrium constant Kp for this reaction at 298K? 57.26 24 O 7.18x10 134 134111 2.72x10 1 pts Question 7 You have a battery that performs the following reaction: 3Fe3 (aa) Al(s) 3Fe2 (aa) Al3+(aq) You allow this reaction to run for a certain period of time, and note that the anode has lost a mass of 12.5 grams over the course of the reaction. How many moles of electrons have been transferred in this battery during that period of time? Enter as moles, don't use scientific notation or units. as always...

Explanation / Answer

Molar mass of aluminium = 26.98 g/mol

12.5 grams of aluminium = 12.5 / 26.98 = 0.463 moles

1 mole of aluminium requires 3 moles of electrons , so 0.463 moles of aluminium will require 0.463 x 3 = 1.389 moles of electrons .

Ans : 1.389 moles

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