Please answer questions 7 8 9 The time for half-like period of certain reaction,
A products is I h. When the initial concentration of the
reactant • A'. is mol I. how much time does it take tor
its concentration to come from 0.50 to 0.25 mol if it is
n of all the
M in 40
ation of A is
a zero order reaction ?
Consider the reaction,
(bi 0.5 h
S (s) v 2W (aq) tag)
The rate equation for this reaction is.
rate = k [H.S]
Which of mechanisms is'are consistent with this
rxte equation ?
HS- + S(fast)
4 HS (fast equilibrium)
Cu. + HSÄ2Cl-+W+S(slow)
(a) (B) only
(c) Neither ( A) nor (B)
(b) Both (A) and (B)
(d) (A) only
The half life period ofa first otxler chemical reaction is 693
minutes. The Lime required tor the completion of of
the chemical reaction will be (log 2 0.301)
(a) 230.3 minutes
(b) 23.03 minutes
(d) 460.6 minutes
For a reaction LA 2B, rate oCdisappearance of •A'is
related to the rate of appearance of •B' by exptessiod
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