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Arrhenius Equation

Q. A first-order reaction has the rate constants of 4.6 x 10^-2 s^-1 and 7.0 x 10^-2 s^-1 at 0 degrees C, respectively. What is the value of the activation energy?

Solved • Sep 20, 2019

Redox Reaction

Q. For each reaction, write the chemical formulae of the oxidized reactants in the space provided. Write the chemical formula of the reduced reactants in the space provided. a. 2AgNO3(aq) + Mg(s) → 2Ag(s) + Mg(NO3)2(aq) b. 3AgNO3(aq) + Al(s) → 3Ag(s) + Al(NO3)3(aq) c. ZnCl2(aq) + 2Na(s) → Zn(s) + 2NaCl (aq)

Solved • Sep 19, 2019

Integrated Rate Law

Q. The rate law for the decomposition of phosphine (PH3) is Rate = - Δ[PH3]/Δt = k[PH3] It takes 115. s for 1.0 MPH3 to decrease to 0.150 M. How much time is required for 2.00 MPH3 to decrease to a concentration of 0.450 M?

Solved • Sep 20, 2019

Integrated Rate Law

Q. A certain first-order reaction is 54% complete in 55 s. What are the values of the rate constant and the half-life for this process?

Solved • Sep 20, 2019

Integrated Rate Law

Q. A certain reaction has the following general form: aA → bB At a particular temperature and [A]0 = 2.80 x 10^-3 M, concentration versus time data were collected for this reaction, and plot of 1[A] versus time resulted in a straight line with a slope value of -2.74 x 10^-2 L/mol.s. Determine the value of the rate constant for this reaction.

Solved • Sep 20, 2019

Integrated Rate Law

Q. A certain reaction has the following general form: aA → bB At a particular temperature and [A]0 = 2.80 x 10^-3 M, concentration versus time data were collected for this reaction, and plot of 1[A] versus time resulted in a straight line with a slope value of -2.74 x 10^-2 L/mol.s. Determine the rate law for this reaction. (Use k for the rate constant)

Solved • Sep 20, 2019

Integrated Rate Law

Q. A certain reaction has the following general form: aA → bB At a particular temperature and [A]0 = 2.80 x 10^-3 M, concentration versus time data were collected for this reaction, and plot of 1[A] versus time resulted in a straight line with a slope value of -2.74 x 10^-2 L/mol.s. Determine the integrated rate law for this reaction.

Solved • Sep 20, 2019