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139 solutions

Average Rate of Reaction

Q. For the reaction, 8H2S(g) + 402(g) yields 8H20(g) + S8(g) The average rate of reaction during the time period from 30 s to 40 s is 1.42*10^-3 moles L^-1 s^-1. If the volume of the container is 3L, how many moles of O2 are consumed during this time period? a) 0.17 moles b) 0.043 moles c) 0.34 moles d) 0.057 moles e) 0.017 moles

Solved • Apr 5, 2020

Average Rate of Reaction

Q. The reaction rate constant is determined to be 0.012 M ^-1s^-1. If after 27 minutes the amount of A left is 0.048 M. What was the initial concentration of A? a) 0.72 b) 19.49 c) 0.049 d) 2.53e16

Solved • Mar 31, 2020

Average Rate of Reaction

Q. When the reaction below: 3NO(g) → N2O(g) + NO2(g) is proceeding under conditions such that 0.015 mol/L of N2O is being formed each second, the rate of the overall reaction is _______ and the rate of change for NO is ______. a) 0.015 M/s; -0.045 M/s b) 0.030 M/s; -0.005 M/s c) 0.015 M/s; -0.005 M/s d) 0.015 M/s; -0.045 M/s

Solved • Mar 31, 2020

Average Rate of Reaction

Q. The reaction 3O2 (g) - > 2 O3 (g) proceeds with a rate of disappearance of O2 equal to 1.20 M/s. What is the rate of appearance of O3?

Solved • Mar 22, 2020

Average Rate of Reaction

Q. In the reaction 2CO (g) + O2 (g) ----- > 2CO2 (g) which reactant is consumed at a lower rate?

Solved • Mar 19, 2020

Average Rate of Reaction

Q. What is the concentration remaining after 10.0 min?

Solved • Mar 13, 2020

Average Rate of Reaction

Q. Hydrogen peroxide decomposes over time to make water and oxygen gas. The instantaneous rate of decomposition at t=11.1 h is determined to be 3.2x10^-2 mol-1h-1. What is the instantaneous rate of production of H2O and O2?

Solved • Mar 13, 2020