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11 solutions

Instantaneous Rate of Change

Q. Suppose you are studying the catalyzed decomposition of hydrogen peroxide. 2H2O2⟶2H2O+O2 If you collect 5.34 mL of O2 at 298 K and 1.00 atm over 60.0 seconds from a reaction solution of 5.11 mL, what is the initial rate of the reaction?

Solved • Oct 15, 2019

Instantaneous Rate of Change

Q. Here is a graph of the molarity of acetonitrile (CH3CN) in a reaction vessel during a certain chemical reaction. Use the graph to answer the questions in the table below. Is CH3CN being created or destroyed by the chemical reaction? If CH3CN is being created or destroyed, what is the rate at which it is being created or destroyed 13 seconds after the reaction starts? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. If CH3CN is being created or destroyed, what is the average rate at which it is being created or destroyed during the first 13 seconds of the reaction?

Solved • Oct 10, 2019

Instantaneous Rate of Change

Q. The following data were collected at a certain temperature for the decomposition of sulfuryl chloride, SO2Cl2, a chemical used in a variety of organic syntheses. SO2Cl2 → SO2 + Cl2 Determine the instantaneous rate of formation of SO2 using the tangent to the curve at t = 200 minutes and t = 600 minutes. Enter your answer using scientific notation.

Solved • Oct 9, 2019

Instantaneous Rate of Change

Q. Here is a graph of the pressure of ozone (O3) in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. Is O3 being created or destroyed, what is the rate at which it is being created or destroyed 110 seconds after the reaction starts? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol.

Solved • Sep 29, 2019

Instantaneous Rate of Change

Q. An average reaction rate is calculated as the change in the concentration of reactants or products over a period of time in the course of the reaction. An instantaneous reaction rate is the rate at a particular moment in the reaction and is usually determined graphically. The reaction of compound A forming compound B was studied and the following data were collected: Time(s) - [A] (M): 0s - 0.184 M, 200s - 0.129 M, 500s - 0.069 M, 800s - 0.031 M, 1200s - 0.019 M, 1500s - 0.016 M What is the instantaneous rate of the reaction at t = 800s? Express your answer to two significant figures and include the appropriate units.

Solved • Sep 26, 2019

Instantaneous Rate of Change

Q. The instantaneous rate of a certain chemical reaction was determined as 2.3x10^-2 M/s at time tx and as 8.4x10^-2 M/s at time ty. We know that these two measurements were taken after 20 seconds and after 100 seconds after two reactants were mixed. tx = 20s or 100s (select one). ty = 20s or 100s (select one)

Solved • Jul 19, 2019

Instantaneous Rate of Change

Q. The decomposition of acetaldehyde is a second order reaction with a rate constant of 4.71.10-8 L/mol/s. What is the instantaneous rate of decomposition (in mol/L/s) of acetaldehyde in a solution with a concentration of 5.54 > 10-1 M

Solved • Jul 1, 2019