In her chemistry class, Rachel is preparing a special solution for an experiment that she has to complete. The concentration of the solution can be modelled by the rule C = 1.44 log.(0.56t) Where C is the concentration in moles per litre (M) and t represents the time of mixing in seconds. Find the concentration of the solution after 15 seconds of mixing. O How long does it take, in minutes and seconds, for the concentration of the solution to reach 10 M? (use analytical method- by solving mathematical equation) Use Microsoft excel to plot the graph of C vs t (0.5 sts 15)

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter4: Energy And Chemical Reactions
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5) In her chemistry class, Rachel is preparing a special solution for an experiment that
she has to complete. The concentration of the solution can be modelled by the rule
C = 1.44 loge(0.56t)
Where C is the concentration in moles per litre (M) and t represents the time of
mixing in seconds.
a) Find the concentration of the solution after 15 seconds of mixing.
b) How long does it take, in minutes and seconds, for the concentration of the
solution to reach 10 M? (use analytical method- by solving mathematical equation)
c) Use Microsoft excel to plot the graph of C vs t (0.5 <t< 15)
d) Change the y axis to log scale using 'Format axis' feature in MS Excel
e) Validate your answer in part (b) with the corresponding MS Excel table value.
(state whether both answers are approximately/exactly equal)
Transcribed Image Text:5) In her chemistry class, Rachel is preparing a special solution for an experiment that she has to complete. The concentration of the solution can be modelled by the rule C = 1.44 loge(0.56t) Where C is the concentration in moles per litre (M) and t represents the time of mixing in seconds. a) Find the concentration of the solution after 15 seconds of mixing. b) How long does it take, in minutes and seconds, for the concentration of the solution to reach 10 M? (use analytical method- by solving mathematical equation) c) Use Microsoft excel to plot the graph of C vs t (0.5 <t< 15) d) Change the y axis to log scale using 'Format axis' feature in MS Excel e) Validate your answer in part (b) with the corresponding MS Excel table value. (state whether both answers are approximately/exactly equal)
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