Question
A dried sample of K2Cr2O7 (MM = 294.1850 g/mol) weighing 1.505 g was dissolved in 2.488 L in 1.0 M H2SO4. A 25.00 mL aliquot
A dried sample of K2Cr2O7 (MM = 294.1850 g/mol) weighing 1.505 g was dissolved in 2.488 L in 1.0 M H2SO4. A 25.00 mL aliquot of this sample was diluted to 200.0 mL. From the 200.0 mL flask a 25.00 mL aliquot was removed and diluted to 250.0 mL. What is the concentration of Cr (MM = 51.9962 g/mol) in ppm in the 250.0 mL flask?
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Organic Chemistry A Short Course
Authors: Harold Hart, Christopher M. Hadad, Leslie E. Craine, David J. Hart
13th edition
1111425566, 978-1111425562
