Urgent 25 amanda was asked to make a solution of salt water using 32.0 grams of nacl and 0.75 liter of water. amanda realized that first, she needed to find the number of moles there are in 32 grams of nacl. she set up the following calculation to find the number of moles of nacl. 32.0 g nacl x 1 mole nacl = 0.55 moles of nacl 58.45 g nacl a. did amanda find the number of moles of nacl correctly? if not, explain. b. what does amanda need to do next to calculate the molarity of the nacl solution? show your work for full credit.

This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

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