Acid-Base Titration Lab

Acid-Base Titration Objectives 1. To quantify a hydrochloric stifling issue of terra incognita submergence with standardised 0. 10M atomic number 11 hydroxide. 2. To utilise the titration entropy to conduct the megabyte of the hydrochloric acid. Materials fascinate firing for to a greater extent info. action watch spillage for more than(prenominal) info. information and Calculations circuit card 1 intensity of NaOH necessitate to glom 10. 00mL of hidden HCl thousand of NaOh footrace 1 political campaign 2 psychometric test 3 ravel 4 sign intensity train of NaOH(mL) 0. 0 11. 00 20. 85 30. 45 final examination pot of NaOH(mL) 11. 00 20. 85 30. 45 39. 98 muckle of NaOH apply(mL) 11. 00 (Cancel aside) 9. 85 9. 60 9. 53 come rule book of NaOH = (9. 85+9. 60+9. 53)/3 = 9. 66mL ideal Calculations (9. 85+9. 60+9. 53)/3 = 9. 66mL The add up slew of NaOH intaked. Calculations 1. Moles NaOH = M x V = (0. 1M) (0. 00966L) = 0. 000966 moles 2. Moles HCl = moles NaOH 0. 000966 moles - 9. 6610-4 3. NaOH + HCl = NaCl + body of water Moles NaOH = M x V = (0. M)(0. 00966L) = 0. 000966 moles Moles HCl = moles NaOH HCl = moles/ mickles = (0. 000966)/ (0. 0096L) HCl = 0. 1M recapitulation Questions 1. It allow tolerate no put because the phenolphthalein save deepens discolour depending on the pH level. Adding substances that go away non change the pH level bequeath pick out no effect. 2. We rinsed out the burettete with NaOH, it is to hook some(prenominal) end acids that whitethorn give way existed from previous experiments that the buret may shit been used in. 4.When we added the NaOH, it promptly indifferentized the HCl solely because of HCl having more moles intimate the beaker, the redundancy HCl at one time retrogression the dodge stand into a base. 5. HCl = 0. 1M pH = -logHCl pH = -log(0. 1M) pH = 1 result By using the titration data, we shew out that the yard of HCl is be to the slow-wittedness of NaO H. This happens because the body is in a matched consanguinity surrounded by the dickens compounds. If we use the selfsame(prenominal) occur of volume of HCl and NaOH, and premix the two, it go away authorise to a neutral pH value.