At 427 oC the decomposition of hydrogen iodide is second order, according to the following equation:...

Question

Question

At 427 ^oC the decomposition of hydrogen iodide is second order, according to the following equation: 2Hl -> H₂ +I₂

In an experiment the initial [Hl]₀ = 2.20 M and the rate constant is 0.00142 M^-1 s^-1.

a) What is the half life in seconds?

b) How much Hl remains after 3600 seconds have passed?

c) How many minutes would it take for a concentration of 1.35 M Hl to decompose to 0.8253 M?

science chemistry

Answer 1

Answer #1

(a) half life = 320. seconds

(b) amount of HI remaining = 0.180 M

(c) time = 5.53 minutes

Answer 2

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