0.0001M(10-4M) NaOh. dilute 5mL of 0.1M sodium hydroxide, NaOh, with 45 mL of boiled distilled water to make 50mL of 0.01 M Naoh. now repeat the dilution proxess two more times, exactly as you did for HCl solutions 2, obtain a 0.0001M NaOH solutions (use boiled water)