Question

The inversion of cane sugar is first order in [sugar] and proceeds with half-life of 600 minutes at pH = 4 for a given concentration of sugar. However, if pH = 5, the half-life changes to 60 minutes. The rate law expression for the sugar inversion can be written as

• A. rate $=k{\left[sugar\right]}^1{\left[H^{+}\right]}^2$
• B. rate $=k{\left[sugar\right]}^1{\left[H^{+}\right]}^1$
• C. rate $=k{\left[sugar\right]}^1{\left[H^{+}\right]}^4$
• D. rate $=k{\left[sugar\right]}^1{\left[H^{+}\right]}^0$
• E. rate $=k{\left[sugar\right]}^1{\left[H^{+}\right]}^5$

Answer 1

Answer: (D)

Correct answer is (d) rate $=k{\left[sugar\right]}^1{\left[H^{+}\right]}^0$