CHEM 14BL Chapter Notes - Chapter 2: Volumetric Flask, Approximation Error
25 Aug 2015
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Calculating % inherent error for experiment #2 post-lab report. Please read lecture guide #1 or the lab manual (p. 23 - 29) on how to calculate % relative error for various mathematical operations before you follow the steps shown below. It will help you to understand the formulations on this handout. Note: [ ] means that the quantity has a unit of mol/l. () means the absolute error of the equipment. Refer to page 31 for absolute errors in various lab equipment. (i) % inherent error (or sometimes refer to as % relative error) for solution 1: " (total volume of the solution in liters) (wt. of food-dye) (wt. of food-dye) + Note: we assume that there is no uncertainty in the molecular weight. (ii) % inherent error for solution 2: [solution 2] = [solution 1] * pipet volume. [solution 1] = inherent error for solution 1.
