Liquid drain cleaner, pH 13.5 acidic or basic

Basic

Explanation:

The pH of a substance is a measure of the acidity of a substance.

The pH of a substance is calculated using the formula:

where

is the concentration of hydronium ion in the solution

A substance is classified as follows depending on the value of its pH:

- pH between 0 and 7: acidic solution

- pH of 7: neutral solution

- pH between 7 and 14: basic solution

So in this problem, since the pH of the liquid drain cleaner is 13.5 (between 7 and 14), the substance is strongly basic.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.