A stock solution of analyte is made by dissolving 34.83 mg of copper (II) acetate hexahydrate (fw = 289.73 g/mol) in 25.00 mL of water. A second stock solution of internal standard is made by dissolving 28.43 mg of germanium (I) acetate (fw = 190.74 g/mol) into 25.00 mL of water. These solutions are used to make a series of standards for flame atomic absorption analysis calibration. The standard solutions (each 10.00 mL total volume) should have the following concentrations of copper: 10.00; 25.00; 50.00; 100.0; and 200.0 μM. Each calibration solution should also contain 50.00 μM of germanium. What is the analyte stock solution concentration? What is the internal standard stock solution concentration? Complete this table.
A stock solution of analyte is made by dissolving 34.83 mg of copper (II) acetate hexahydrate (fw = 289.73 g/mol) in 25.00 mL of water. A second stock solution of internal standard is made by dissolving 28.43 mg of germanium (I) acetate (fw = 190.74 g/mol) into 25.00 mL of water. These solutions are used to make a series of standards for flame atomic absorption analysis calibration. The standard solutions (each 10.00 mL total volume) should have the following concentrations of copper: 10.00; 25.00; 50.00; 100.0; and 200.0 μM. Each calibration solution should also contain 50.00 μM of germanium. What is the analyte stock solution concentration? What is the internal standard stock solution concentration? Complete this table.
Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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A stock solution of analyte is made by dissolving 34.83 mg of copper (II) acetate hexahydrate
(fw = 289.73 g/mol) in 25.00 mL of water. A second stock solution of internal standard is made
by dissolving 28.43 mg of germanium (I) acetate (fw = 190.74 g/mol) into 25.00 mL of water.
These solutions are used to make a series of standards for flame atomic absorption analysis
calibration. The standard solutions (each 10.00 mL total volume) should have the following
concentrations of copper: 10.00; 25.00; 50.00; 100.0; and 200.0 μM. Each calibration solution
should also contain 50.00 μM of germanium. What is the analyte stock solution concentration? What is the internal standard stock
solution concentration?
Complete this table.
Transcribed Image Text:Concentration Cu
Volume of analyte
Volume of internal
Volume of
Total Volume
(иМ)
stock (mL)
standard stock (mL)
diluent (mL)
(mL)
10.00
10.00
25.00
10.00
50.00
10.00
100.0
10.00
200.0
10.00
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