Prepare a standard additions plot using the potential data for the ten additions of 0.1 m cacl 2 and the value obtained for the celery salt mixture prior to making the additions. harris (9 th edition) has a nice discussion of the principle on pp. 106-108 and there is a detailed outline of the exact procedure on the ise poster in the lab and in the hall outside the lab. you may also consult handout 7, posted on canvas. calculate the concentration of chloride in the beaker in moles per liter and in ppm chloride. also calculate the wt% nacl in the solid celery salt.

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

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

Light waves can move through , but they travel fastest when they move through a(n) .