Solutions A and B are separated by a semipermeable membrane that is permeable to K+, but not to Cl-. Solution A is 100 mM KCI, and solution B is 1 mM KCI. Which of the following statements about solution A and solution B is true?

(A) K+ ions will diffuse from solution A to solution B until the [K+ ] of both solutions is 50.5 mM

(B) K+ ions will diffuse from solution B to solution A until the [K+ ] of both solutions is 50.5 mM

(C) KCl will diffuse from solution A to solution B until the [KCl] of both solutions is 50.5 mM

(D) K+ will diffuse from solution A to solution B until a membrane potential develops with solution A negative with respect to solution B

(E) K+ will diffuse from solution A to solution B until a membrane potential develops with solution A positive with respect to solution

Is pain reliever a prescription drug?

Why did southern business leaders want to increase the number of slaves

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