sonya makes a 25.00mL(v2) dilution from a stock solution of sodium hydroxide. the stock solution concentration is 0.260ppm(NaOH). she uses 12.00mL(v1) of this solution to make the dilution. what is the concentration(c2) of her working solution? recall: c1v1=c2v2

T(s) in2os] (m) 0 185 2.39 546 1.90 725 1.70 the decomposition of n205 can be described by the equation 2.68 given these data for the reaction at 45°c in carbon tetrachloride solution, calculate the average rate of reaction for each successive time interval. ntr s to 185 s 185 s to 546 s 546 s to 725 s number number number reaction rate: m/s m/s m/s