Chemistry, 18.06.2020 02:57 dperdomo0015
When I was a boy, Uncle Wilbur let me watch as he analyzed the iron content of runoff from his banana ranch. A 25.0-mL sample was acidified with nitric acid and treated with excess KSCN to form a red complex. (KSCN itself is colorless.) The solution was then diluted to 100.0 mL and put in a variable-path length cell. For comparison, a 10.0-mL reference sample of 6.74 times 10^-4 M Fe^3+ was treated with HNO_3 and KSCN and diluted to 50.0 mL, The reference was placed in a cell with a 1.00-cm light path. The runoff sample exhibited the same absorbance as the reference when the path length of the runoff cell was 2.41 cm. What was the concentration of iron in Uncle Wilbur's runoff?
Answers: 3
Chemistry, 22.06.2019 14:20
Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments
Answers: 1
Chemistry, 22.06.2019 19:00
Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions
Answers: 3
Chemistry, 22.06.2019 20:00
Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
Answers: 1
When I was a boy, Uncle Wilbur let me watch as he analyzed the iron content of runoff from his banan...
Mathematics, 11.10.2020 14:01
History, 11.10.2020 14:01
Mathematics, 11.10.2020 14:01
History, 11.10.2020 14:01
Social Studies, 11.10.2020 14:01
Mathematics, 11.10.2020 14:01
Mathematics, 11.10.2020 14:01
Mathematics, 11.10.2020 14:01
Mathematics, 11.10.2020 14:01
History, 11.10.2020 14:01
Mathematics, 11.10.2020 14:01
Mathematics, 11.10.2020 14:01
English, 11.10.2020 14:01