Oceanography

Reagents

·        Std. NaOH solution (0.02 N): Dissolve 200 ml of stock solution to 1000 ml with distilled water.

·         Stock NaOH solution: Dissolved 4 g NaOH in 1000 ml distilled water.

·         Phenolphthalein indicator: Dissolve 0.5 g of phenolphthalein powder in 50ml of 95% C₂H₂OH and add 50ml distilled water.