chem lab write up molarity of acid

chem lab write up molarity of acid - Title Determining the...

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Title: Determining the Molarity of a Strong Acid Experiment #3 William Matthew Speight Locker Number: J20-4 Chem 1A, Section 450, Rebecca Petit Purpose: To determine the molarity, or concentration, of the HCl solution with high precision by titration with a strong acid. Methods: First, dilute 5 mL of 5 M HCl with distilled water and fill a buret with the distilled HCl solution. A buret is used to ensure accuracy in the recording of the amount of the HCl solution used. Measure approximately .20g of TRIS and record the exact weight to four decimal places to ensure consistency in the experiment’s outcome. Add water to the TRIS and place the mixture into an Erlenmeyer flask, along with 5 drops of bromocresol green, to indicate when the TRIS mixture is fully titrated. Next, add the HCl solution to the TRIS mixture, constantly stirring, until the mixture turns green. Record the amount of HCl solution consumed. Then, calculate the exact molarity of the HCl solution. Repeat the
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