Titration Lab

Titration Lab Period 3 5/20/12 Objective: The main heading of this lab was to determine the mettle of atomic number 11 hydroxide call for to scourge 10 milliliters of hydrochloric acid. We also had to calculate the one thousand of the atomic number 11 hydroxide using our info. Concepts: Some different concepts used in this lab: indicators, titration formula, titration curves, pH levels, acids, and bases. Materials: Materials used in this lab: a 250mL beaker, ring stand, burette, Erlenmeyer flask, wait cock, burette clamp, 10mL HCL, 10mL NaOH, 3 drops of phenolphthalein, and pH paper. function: 1. Pour 10mL of water into the Erlenmeyer flask. 2. Pour 10mL of HCl into the Erlenmeyer flask. 3. Put trinity drops of phenolphthalein into the flask. 4. specify the flask under the burette. 5. Pour the NaOH by twisting the see to it cock. Shake the flask while rain cats and dogsing. Pour until a marvellous garden pink co lor starts to appear. At this point pour actually slowly until the whole solution turns a brainsick pink. 6. place down the amount of NaOH poured into the flask. 7. Repeat steps 1-6 until three trials have been recorded. Results: psychometric test| Initial tidy lend| Final Volume| Total Volume| Color of the beginning| pH | 1| .60mL| 8.6mL| 8mL| Bright tip| N/A| 2| 8.6mL| 14.9mL| 6.

3mL| Semi-Brightgarden pink| N/A| 3| 14.9mL| 21.3mL| 6.3mL| Pale Pink| 7 Yellow| Analysis: The information that we collected, made us infer that the indicator, phenolphthalein, changes to a b right pink color in the presence of a basic ! solution. Our data also showed that the unbiased solution had a lesser amount of NaOH than HCl. This would mean that the NaOH was more than concentrated than the HCl. We then calculated the molar concentration of NaOH with the account book found in our data. After calculating the molarity of NaOH, we were devoted the actual molarity. We compared our calculated molarity to the actual molarity to develop 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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