Treatment of cycloheptatriene with one equivalent of bromine gave an oily dibromide that on heating in vacuum at 70° left tropylium bromide, c7h7br, as yellow crystals, melting point 198-200°. tropylium bromide is an unusual organic bromide, intrinsically colored and soluble in water but not in non-polar organic solvents like hexane. draw the structure of tropylium bromide.

Perform the following mathematical operations and report the answer to the appropriate number of significant figures 5.87998 + 3.100

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1