This document provides procedures for preparing and standardizing various molar and normal solutions, including oxalic acid, sodium hydroxide, hydrochloric acid, sulfuric acid, and potassium permanganate. It describes how to directly prepare oxalic acid solutions of specific molarities. It also outlines the standardization processes for each solution, which involve titrating a sample of the solution against a standard solution of known molarity and calculating the molarity based on the titration results.