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Ka and Kb

Q. Indicate which of the following is the stronger base in aqueous solution,(CH3)2NH or (CH3)3NA. (CH3)2NHB. (CH3)3NC. They have equal strengths as ba...

Solved • Apr 2, 2021

Spontaneous Reaction

Q. When is a reaction with a positive enthalpy spontaneous?

Solved • Apr 2, 2021

Hess's Law

Q. Now consider the following set of reactions:2 NO2 → 2 NO + O2, ΔH = 109 kJ/molN2O4 → 2 NO + O2, ΔH = 172 kJ/molPart AThe equations given in the pro...

Solved • Apr 2, 2021

Rate Law

Q. Using the given data, calculate the rate constant of this reaction. A + B → C + DTrial       A(M)            B(M)         Rate(M/s)   1.        0.3...

Solved • Apr 2, 2021

Spontaneous Reaction

Q. Under what conditions can a non-spontaneous reaction be made spontaneous?A. When an endothermic reaction has a positive change in entropy and the t...

Solved • Apr 2, 2021

Ionic Salts

Q. If a strong acid and weak base salt (ex: Pb(NO3)2) is added to some weak acid (ex: acetic acid), will its electrolyte be influenced (increase or de...

Solved • Apr 2, 2021

Ka and Kb

Q. Why do strong acids have weak conjugate bases?

Solved • Apr 2, 2021