Titration Lab

Titration Lab Period 3 5/20/12 Objective: The main heading of this lab was to determine the meat of atomic number 11 hydroxide call for to rot 10 milliliters of hydrochloric acid. We also had to calculate the one thousand of the sodium 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. outgrowth: 1. Pour 10mL of water into the Erlenmeyer flask. 2. Pour 10mL of HCl into the Erlenmeyer flask. 3. Put cardinal drops of phenolphthalein into the flask. 4. railroad siding the flask under the burette. 5. Pour the NaOH by twisting the drive off cock. Shake the flask while burgeon forthing. Pour until a unconvincing garden pink color starts to appear. At this point pour actually slowly until the whole solution turns a piquet 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 mettle| Final Volume| Total Volume| Color of the declaration| pH | 1| .60mL| 8.6mL| 8mL| Bright tip| N/A| 2| 8.6mL| 14.9mL| 6.

3mL| Semi-Bright pinko| 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 bright pink color in the presence of a basic solution. Our data also showed that the el ectroneutral solution had a lesser amount of! NaOH than HCl. This would mean that the NaOH was more concentrated than the HCl. We then calculated the molar concentration of NaOH with the deal found in our data. After calculating the molarity of NaOH, we were disposed(p) the actual molarity. We compared our calculated molarity to the actual molarity to reveal our percent error. Errors: There could have been many...If you want to describe a full essay, order it on our website: OrderEssay.net

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