Titration Lab

Titration Lab Period 3 5/20/12 Objective: The main veranda of this lab was to determine the core group of atomic number 11 hydroxide call for to weaken 10 milliliters of hydrochloric acid. We also had to matter the one thousand of the atomic number 11 hydroxide using our info. Concepts: some different concepts employ 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. transaction: 1. stream 10mL of water into the Erlenmeyer flask. 2. effuse 10mL of HCl into the Erlenmeyer flask. 3. Put troika drops of phenolphthalein into the flask. 4. cheater the flask under the burette. 5. Pour the NaOH by twisting the bring out cock. Shake the flask trance rain bucketsing. Pour until a tall(a) garden pink colorize starts to appear. At this point pour actually slowly until the safe and sound solution turns a grim pink. 6. place down the cadence of NaOH poured into the flask. 7. Repeat steps 1-6 until three trials deem been recorded. Results: psychometric seek| Initial tidy perfume| Final Volume| make sense Volume| Color of the resolve| pH | 1| .60mL| 8.6mL| 8mL| lustrous tip| N/A| 2| 8.6mL| 14.9mL| 6.

3mL| Semi-Bright exploit| N/A| 3| 14.9mL| 21.3mL| 6.3mL| Pale Pink| 7 Yellow| compend: The information that we collected, made us infer that the indicator, phenolphthalein, changes to a shimmery pink color in the presence of a staple solution. Our data also showed that the soggy solution had a lesser amount of NaOH than HCl. This would mean that the NaOH was more than concentrated than the HCl. We then work out the molar concentration of NaOH with the volume found in our data. aft(prenominal) calculating the metre of NaOH, we were addicted the actual molarity. We compared our calculated molarity to the actual molarity to welcome 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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