Question

As part of an exam, you are given a powder to analyze. When you perform various tests, youfind that it contains a single chemical that changes the pH of neutral water to a pH of 13. Youwould conclude that the chemical is aa. weak acid.b. neutral.c. weak base.d. strong acid.e. strong base.

Answer 1

To answer this we need to remember the pH scale, as lower is the numbe the compound is more acid, mmeanwhile, if the number ishigher wweare talking of a base, it ranges from 10to 14, being l0 the most acid, 7 neutral and 14 strongest base. Also, we must not forget that the pH scale is on a logarithmic scale (base 10) which means that each level is 10 timeshhigherthatn the previous level, so if we have a 13 pH level we are talking of a very strong base, therefore, the correct answer is option e.