Which of the following is NOT true of sodium chloride? A. It is a dangerous compound for humans.
B. Known as salt, it is the most common ionic compound in our daily lives.
C. It is made up of two chemicals: chlorine (Cl) and sodium (Na).
D. The atoms that make up sodium chloride would be deadly if ingested separately-

True or false, the three major scales used to measure earthquakes are mercalli scale, richter scale and magnitude scale

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

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