1.
Post Lab Questions Past Lab Questions A tow 6tand awd deviation mians te d ud a is clos toyt hr
and not spread out when data o ured togeher deviation of k say about the precision of your
measurements? devrabi on mtans What does the size of the standard 1. 2. How linear was your
Arrhenius plot? What does that say about your value of E,? What percentage of the hydrogen
peroxide has been decomposed in mixture #1 when 20.0 mL of O, gas has been evolved?
Assume your room temperature, 740 torr of pressure, and a density of3%H,O, of 1.00 gmL Do
not forget to take into account the vapor pressure of water. 3. 17-5%, 4 Propose a mechanism for
the reaction consistent with the rate law you measured.
Solution
Ans 1 :
A low standard deviation says that the values in the data are close and not randomly spread out.
In such a case the precision is higher.
Now when the standard deviation is more , it suggests that the data has different values which are
not really close to each other and not grouped.
In this case , the precision obtained is less.