3. Boric acid solution.H3BO3 20 grams dissolved in distilled water without ammonia and dilute to volume is 1 liters.4. Sodium hydroxide solution 35% dissolved NaOH 350 g in distilled water without ammonia and dilute a 1 liters5. Sulfuric acid concentration.6) CuSO4.7. 0.02, N sulfuric acid standard solution
การแปล กรุณารอสักครู่..
