15.19
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Sohini Halder 1G
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15.19
I am confused about 15.19. When I find k, I get 2.85 x 10-^12 mol/Ls. The answer key gives the same value but as mmol/Ls. This is wrong right? We have to convert the mmol to mol to get a power of 10^-12, but why is the units for the answer key still mmol/Ls?
Re: 15.19
From experiment 2:
17.4 mmol/L*s = k(2.5 mmol/L)(1.25^2 mmol^2/L^2)(1.25^2 mmol^2/L^2)
k = 17.4 mmol/L*s /(1.25^2*1.25^2*2.5) mmol^5/L^5
The mmol and L cancel, so you have
k = 17.4/s /(1.25^2*1.25^2*2.5) L^4/mmol^4
1 mmol = 10^3 mol, so
k = 17.4/(1.25^2*1.25^2*2.5)* 10^12 L^4/mol^4*s
17.4 mmol/L*s = k(2.5 mmol/L)(1.25^2 mmol^2/L^2)(1.25^2 mmol^2/L^2)
k = 17.4 mmol/L*s /(1.25^2*1.25^2*2.5) mmol^5/L^5
The mmol and L cancel, so you have
k = 17.4/s /(1.25^2*1.25^2*2.5) L^4/mmol^4
1 mmol = 10^3 mol, so
k = 17.4/(1.25^2*1.25^2*2.5)* 10^12 L^4/mol^4*s
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