The standardization of an H2SO4 solution requires several steps: - Weighing 0.05

Question

The standardization of an H2SO4 solution requires several steps: - Weighing 0.05000 g CaCO3 (2 Measurements, s= +- 0.001 g per measurement) -dilution to 250 ml volume (s=+- 0.2ml) - pipetting a 25 ml aliqout ( s=+- 0.1 ml) - Bureting 25.00ml ( 2 measurements, s=+-0.02 per measurement) 1. Whats the relative uncertainty in each of the above measurements? 2. calculate the measured molarity of H2SO4. 3. Calculate the uncertainty in the measured molarity of the H2SO4. 4. Which step in the procedure contributes the largest source of error? 5. which step in the procedure contributes the smallest source of error?

Explanation / Answer

your answer is present at repository.uobabylon.edu.iq/2010_2011/8_3384_250.pdf

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