Please answer part b and c. Answer to part a is 57.5ppm OBLEM ) 6 points) A stud
ID: 880950 • Letter: P
Question
Please answer part b and c. Answer to part a is 57.5ppm OBLEM ) 6 points) A student made a standard solution by transferring 0 5687g of FeSO -7t NAME: 00-mlL volumetric flask, dissolving the salt and diluting to the mark. He then w aliquot with a volumetric pipet and transferred it to a 100-mL volumetric rlasts er million diluted to the mark and mixed well. Calculate the concentration of iron in pa this is an aqueous solution you can assume that 1 mL of solution = 1g. g of FeSO H,O into umetric flask. The solution was into ol Atomic weight: Fe 56.00 grnol; S = 32.00 g/mol; O = 1600 g/mol a ation of iron in parts per million. Since S-32.00 mol; o- 160 gimal and1 0 m balance is ±0.2 mg, the volumetric flask is ±0.08 mL and the (b) (5 points) If the tolerance of the pipet is ±0.01 mL, calculate the percent inherent error in the final diluted solution in (a) above. (c) (7 points) If the absorbance of solution (a) above was 058, calculate the inherent error range in the absorbance of this solution, if the colorimeter has an absolute error in the % transmittance which is ± 1%.Explanation / Answer
Sorry you can only answer one of the questions.
The answer C is calculated using the formula of percent transmittance:
%T = 10(2-A). where A is Absorbance.