Studying the comparative cleaning capacity of a sample of soap in soft and hard water.
Aim To study the comparative cleaning capacity of a sample of soap in soft and hard water. Apparatus and Chemical Three test tube (20 mL) Dropper Test tube stand three beakers (100 mL) :three glass rod A measuring cylinder (50 mL) A measuring scale Underground water Hard water Distilled water Soap solution Principle Hardness of […]