340 ChemActivity 57Rates of Chemical Reactions O Model 2: The Effect of Concentration on Reaction Rate. Table 1. Initial reaction rates for several experiments at 25 °c. Experiment Initial Initial Initial Rate ofNHt (M of NO (M (M/sec) 2.70 x 10-7 5.40 x 10-7 0.100 0.100 0.200 0.0050 0.010 0.010 Critical Thinking Questions 5. For the three experiments in Table 1: a) Which experiment has the fastest initial rate of reaction? b) Which experiment has the slowest initial rate of reaction? c) Why do you think the initial rates of reaction are different in the three 6. Comparing experiments 1 and 2 only: Are the initial concentrations of NH4 the same? If not, what is the ratio of the concentrations expressed as a fraction, (NH4KNH4)1? a) b) Are the initial concentrations of NOj the same? If not, what is the ratio of the concentrations expressed as a fraction, (INOT h NO)1 Are the initial rates of reaction the same? If not, what is the ratio of the rates of reaction expressed as a fraction, initial rate/initial rate? c) d) Based on the answers to parts a) - c) above, can you determine whether or not the initial rate of reaction depends on the initial (NH)? Why or why not?