Peroxynitric acid (HOONO2) is an unstable molecule that decomposes to nitric acid and oxygen: 2HOONO2(aq) → 2HNO3(aq) + O2(g) When the concentration of peroxynitic acid is graphed against time, the resulting plot is curved, but if the logarithm of this concentration is plotted, we instead get a straight line. Based on this, which statement is true? a) This decay is a second order in peroxynitric acid. b) The slope of the straight-line graph is the rate constant. c) One needs the concentration of peroxynitric acid to calculate its half-life. d) The rate law appears to be of the form -Δ[HOONO2]/Δt = k[HOONO2].
Peroxynitric acid (HOONO2) is an unstable molecule that decomposes to nitric acid and oxygen: 2HOONO2(aq) → 2HNO3(aq) + O2(g) When the concentration of peroxynitic acid is graphed against time, the resulting plot is curved, but if the logarithm of this concentration is plotted, we instead get a straight line. Based on this, which statement is true? a) This decay is a second order in peroxynitric acid. b) The slope of the straight-line graph is the rate constant. c) One needs the concentration of peroxynitric acid to calculate its half-life. d) The rate law appears to be of the form -Δ[HOONO2]/Δt = k[HOONO2].
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter1: The Nature Of Chemistry
Section: Chapter Questions
Problem 110QRT
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Peroxynitric acid (HOONO2) is an unstable molecule that decomposes to nitric acid and oxygen:
2HOONO2(aq) → 2HNO3(aq) + O2(g)
When the concentration of peroxynitic acid is graphed against time, the resulting plot is
curved, but if the logarithm of this concentration is plotted, we instead get a straight line.
Based on this, which statement is true?
-
a) This decay is a second order in peroxynitric acid.
-
b) The slope of the straight-line graph is the rate constant.
-
c) One needs the concentration of peroxynitric acid to calculate its half-life.
-
d) The rate law appears to be of the form -Δ[HOONO2]/Δt = k[HOONO2].
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