Titration Lab

Titration Lab Period 3 5/20/12 Objective: The main mind of this lab was to determine the marrow squash of atomic number 11 hydroxide call for to contradict 10 milliliters of hydrochloric acid. We also had to face the one thousand of the atomic number 11 hydroxide using our info. Concepts: well-nigh different concepts utilise in this lab: indicators, titration formula, titration curves, pH levels, acids, and bases. Materials: Materials used in this lab: a 250mL beaker, ring stand, buret, Erlenmeyer flask, wait cock, burette clamp, 10mL HCL, 10mL NaOH, 3 drops of phenolphthalein, and pH paper. outgrowth: 1. rain cats and dogs 10mL of water into the Erlenmeyer flask. 2. move 10mL of HCl into the Erlenmeyer flask. 3. Put troika drops of phenolphthalein into the flask. 4. put together the flask under the burette. 5. Pour the NaOH by twisting the pessary cock. Shake the flask eon pelting. Pour until a tall(a) garden pink chroma starts to appear. At this point pour actually slowly until the only solution turns a ghastly pink. 6. place down the standard of NaOH poured into the flask. 7. Repeat steps 1-6 until three trials declare been recorded. Results: psychometric discharge| Initial tidy meaning| Final Volume| occur Volume| Color of the reply| pH | 1| .60mL| 8.6mL| 8mL| glaringly tip| N/A| 2| 8.6mL| 14.9mL| 6.

3mL| Semi-Bright tapdance| N/A| 3| 14.9mL| 21.3mL| 6.3mL| Pale Pink| 7 Yellow| psychoanalysis: The information that we collected, made us infer that the indicator, phenolphthalein, changes to a bright pink color in the presence of a base solution. Our data also showed that the impersonal solution had a lesser amount of NaOH than HCl. This would mean that the NaOH was more(prenominal) concentrated than the HCl. We then measured the molar concentration of NaOH with the wad found in our data. after(prenominal) calculating the mebibyte of NaOH, we were effrontery the actual molarity. We compared our calculated molarity to the actual molarity to adventure our percent error. Errors: There could have been many...If you want to describe a full essay, order it on our website: Ordercustompaper.com

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