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November 21, 2014

Homework Help: Chemistry

Posted by Hannah on Tuesday, February 28, 2012 at 9:59pm.

I posted a question like this but my numbers were actually wrong. These are the correct ones.

5.94e-3 / 1.11e-3 = 5.33e-2/2.66e-2

5.35 = 2.00^m

I guess this is not correct because I do not know a whole number that will give you 5.35.



Chemistry - DrBob222, Tuesday, February 28, 2012 at 9:28pm
Nor do I.
That works out to be 2^2.4 = 5.35



Chemistry - Hannah, Tuesday, February 28, 2012 at 9:32pm
It says to round the calculated p,q or z values to the nearest integer so that would be 5. Do you think that my numbers for M or rate are just incorrect?



Chemistry - Hannah, Tuesday, February 28, 2012 at 9:39pm
Im pretty sure the concentrations that I obtained for the 5 flasks used are correct im just not sure I calculated the rate for each correctly.

I was suppose to use the number of moles of I2 produced/L*min. For my I2 I got 6.66e-3 which was half of the S2O3^2- value which was 3.33e-3.

For the rate of each flask I used 6.663-3 / the time of reaction that we collected in minutes so for the first one I did 6.66e-3/1.12min and got 5.94e-3. Did I do this correctly?

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