Refer to Data Table B, in which you entered rate constants. In the spaces below,

Question

Refer to Data Table B, in which you entered rate constants. In the spaces below, enter your rate constants, in M'1 s'1. Do not include units. What is the range of these values from highest to lowest? What is the average of these values? The remainder of this question is designed to help you decide if the data from one of your experiments can be discarded. To quantitatively "throw out" a measurement, you must perform a statistical test on your data called a Q-Test. The formula for the Q-test is ^calculated = gap/range where gap = (questionable value - next closest number) and range = (largest number - smallest number). ^calculated >s then compared to Q_table- If calculated Q_table then the questionable datum can be discarded. What is the gap of these values (questionable value - next closest value)? (Take the absolute value if necessary to make this number positive.) What is calculated for data above? Which Q_table will you compare your Q_calculated to?

Explanation / Answer

arrange the given data in increasing order

we get as follows

2.8 x 10-3 ; 2.9 x 10-3 : 3.1 x 10-3 ; 3.1 x 10-3 ; 3.4 x 10-3

from the above date

range = 3.4 x 10-3 - 2.8 x 10-3

range = 6 x 10-4

now

gap = 2.9 x 10-3 - 2.8 x 10-3

gap = 1x 10-4

so

the gap is 1 x 10-4

now

Qcalculated = gap / range

using the obtained values

we get

Qcalculated = 1 x 10-4 / 6 x 10-4

Qcalculated = 1/6 = 0.1667

we compare it to value of 0.64 next to the 5 measurements in the given table

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