I am supposed to use Equation 10 - see picture - to calculate the order of the reaction between nitric acid and dichromate to two sig figs. I am then supposed to use this calculated order to determine the observed rate constant. I do not understand how to use equation 10.

To determine the order in HNO3, use Eq. 10 above with the rate constants (k) obtained from the data collection software using reactions 1 vs 4 and reactions 2 vs 3 , which differ only in [HNO3]. Take the average of these two determinations and report the order of the reaction in HNO3 to two sig figs. lg10K2K1=KoosH2NO3]2n[CH3CH2OH]2pKobs[H2NO3]1n[CH3CH2DH]1p With Eq. 10 and the k values found using the instrument software, determine kobs for reactions 1-4 using the reaction order reported for HNO3 above and assuming the reaction order in alcohol is one. While these four kobs values should be similar, differences can be attributed to experimental error or an incorrect assumption in the order of the reaction in alcohol