Sodium benzoate is considered one of the most commonly used preservatives
in the pharmaceutical industry. How
much sodium benzoate, Ka = 6.4 X10-
5, will remain undissociated in the
aqueous phase of a 25% oil-water
emulsion if the initial amount of sodium
benzoate in the aqueous phase is 0.5
mole? The pH of the used 100 ml of the
aqueous phase was buffered at pH 5
and the o/w partition coefficient = 5.33.
Assume that sodium benzoate remains
as a monomer in the oil phase.
Select one:
a. 7.86* 10-3 g/ml
b. 0.031 g/100ml
C. 0.0786 g/100 ml​

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

get the total number of pieces of fruit and divide it by 4 to get the average. the result is the answer to the problem. 14 total number of fruits and there are 4 members. 14 divided by 4 is equals to 3.5.