Anyone here know about the law of assumption?

Ineed to find the answer of this question because i dont understand it

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

Select the correct answer. wax is a nonpolar substance. in which type of substance is it most soluble?