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Average Rate of Reaction

#### Q. Hydrogen peroxide decomposes to water and oxygen according to the reaction below: 2 H2O2(aq) ? 2 H2O(l) + O2(g) In the presence of large excesses of I- ion, the following set of data is obtained. What is the average rate of disappearance of H2O2(aq) in M/s in the first 45.0 seconds of the reaction if 1.00 L of H2O2 reacts at 25C and 1.00 atm pressure

Solved • Jun 27, 2019

Average Rate of Reaction

#### Q. The reaction that occurs in a Breathalyzer, a device used to determine the alcohol level in a person's bloodstream, is given below. If the rate of appearance of Cr2(SO4)3 is 1.24 mol/min at a particular moment, what is the rate of disappearance of C2H6O at that moment? 2K2Cr2O7 + 8 H2SO4 + 3 C2H6O 2 Cr2(SO4)3 + 2 K2SO4 + 11 H2O

Solved • Jun 27, 2019

Average Rate of Reaction

#### Q. The oxidation of ammonia produces nitrogen and water via the reaction 4NH3 + 3O2 → 2N2 + 6H2O. If the rate of formation of N2 is 2.0 mol/(L • s), then the rate at which a. H2O is being formed is 2.0 mol/(L • s). b. NH3 reacts is 4.0 mol/(L • s). c. O2 reacts is 1.5 mol/(L • s). d. NH3 reacts is 0.50 mol/(L • s). e. H2O is being formed is 0.67 mol/(L • s).

Solved • Jun 18, 2019

Average Rate of Reaction

#### Q. Could you explain why D is the correct answer.

Solved • Jun 2, 2019

Average Rate of Reaction

#### Q. Consider the following reaction: C4H8(g)→2C2H4(g) Time (s) [C4H8] (M) 0 1.000 10 0.913 20 0.835 30 0.763 40 0.697 50 0.637 What is the rate of formation of C2H4 between 20 and 30 s?

Solved • May 12, 2019

Average Rate of Reaction

#### Q. Consider the general reaction shown below. 5Br-(aq) + BrO3-(aq) + 6H+(aq) ® 3Br2(aq) + 3H2O(aq) For this reaction, the rate when expressed as D[Br2]/Dt is the same as what? (ch 16, wk 6 q8)

Solved • Apr 3, 2019

Average Rate of Reaction

#### Q. consider the following reaction 8A(g) + 5B(g) ----> 8C(g) + 6D(g) If [C] is increasing at the rate of 4.0 mol L-1s-1, at what rate is [B] changing? (Chap 16 Wk 6 2Q)

Solved • Apr 3, 2019