CHEM 14BL Chapter Notes - Chapter 3: Reaction Rate, Novella, Weak Base

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Digital balance: 0. 2 mg = 0. 0002 g. Solution #1: transfer 0. 3000 g of brilliant blue fcf into a 100. 00 ml volumetric flask. Solution #2: pipet 5. 00 ml of solution #1 into a 100. 00 ml volumetric flask and dilute to the mark with distilled water. Assume the molecular weight of brilliant blue fcf is 792. 84 g/mol. Also, assume the absolute error in the molecular weight of brilliant blue fcf is 1 in the last digit. (a) find the % inherent error in molarity of solution #2. M = n/v and m1*v1 = m2*v2 are multiplication and division equations. This means you will use the multiplication/division equation to find inherent error. Inherent error in solution 1 = inherent error in mass + inherent error in volumetric flask + inherent error in m. w. = ( 0. 0002 g/ 0. 3000g) + ( 0. 08 ml/ 100. 00 ml) + ( 0. 01 g/mol/ 792. 84 g/mol)

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