Kinetic data for a reaction, A → B, was measured and the same data were plotted in three different ways. The results of the plots are below. Plot 1
A plot of [A] versus time had a line of best fit as
y = –.0505 x + 0.275 R2 = 0.98493

Plot 2
A plot of ln [A] versus time had a line of best fit as
y = –0.0026 x – 1.290 R2 = 0.99997

Plot 3
A plot of $$
versus time had a line of best fit as
y = 0.00001 x + 3.636 R2 = 0.98653

Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?

What is the most important factor in determining climates.