In the spectroscopic analysis of many substances, a series of standard solutions of known concentration are measured to generate a calibration curve. How would you prepare standard solutions containing 10.0, 25.0, 50.0, 75.0, and 100. ppm of copper from a commercially produced 1000.0-ppm solution? Assume each solution has a final volume of 100.0 mL. (See Exercise 123 for definitions.)
In the spectroscopic analysis of many substances, a series of standard solutions of known concentration are measured to generate a calibration curve. How would you prepare standard solutions containing 10.0, 25.0, 50.0, 75.0, and 100. ppm of copper from a commercially produced 1000.0-ppm solution? Assume each solution has a final volume of 100.0 mL. (See Exercise 123 for definitions.)
Solution Summary: The author explains that the volume of stock solution of each sub-division has to be calculated.
In the spectroscopic analysis of many substances, a series of standard solutions of known concentration are measured to generate a calibration curve. How would you prepare standard solutions containing 10.0, 25.0, 50.0, 75.0, and 100. ppm of copper from a commercially produced 1000.0-ppm solution? Assume each solution has a final volume of 100.0 mL. (See Exercise 123 for definitions.)
a)
Expert Solution
Interpretation Introduction
Interpretation: The volume of stock solution of each sub-division has to be calculated.
Concept Introduction: Concentration of solution can be defined in terms of molarity as moles of solute to the volume of solution. The concentration of solution can be given by,
Transfer
10mL of the
1000ppm stock solution to a
100mL volumetric flask, and dilute to the mark.
Requiredvolumestocksolutionis10mL
The volume of stock solution is calculated by plugging in the values of concentration of stock solution and mass of copper along with required volume of the solution. The volume of stock solution copper is
10mL.
b)
Expert Solution
Interpretation Introduction
Interpretation: The volume of stock solution of each sub-division has to be calculated.
Concept Introduction: Concentration of solution can be defined in terms of molarity as moles of solute to the volume of solution. The concentration of solution can be given by,
Transfer
5mL of the
1000ppm stock solution to a
100mL volumetric flask, and dilute to the mark.
Requiredvolumestocksolutionis7.5mL
The volume of stock solution is calculated by plugging in the values of concentration of stock solution and mass of copper along with required volume of the solution. The volume of stock solution copper is
7.5mL.
c)
Expert Solution
Interpretation Introduction
Interpretation: The volume of stock solution of each sub-division has to be calculated.
Concept Introduction: Concentration of solution can be defined in terms of molarity as moles of solute to the volume of solution. The concentration of solution can be given by,
Transfer
5mL of the
1000ppm stock solution to a
100mL volumetric flask, and dilute to the mark.
Requiredvolumestocksolutionis5mL
The volume of stock solution is calculated by plugging in the values of concentration of stock solution and mass of copper along with required volume of the solution. The volume of stock solution copper is
5mL.
d)
Expert Solution
Interpretation Introduction
Interpretation: The volume of stock solution of each sub-division has to be calculated.
Concept Introduction: Concentration of solution can be defined in terms of molarity as moles of solute to the volume of solution. The concentration of solution can be given by,
Transfer
2.5mL of the
1000ppm stock solution to a
100mL volumetric flask, and dilute to the mark.
Requiredvolumestocksolutionis2.5mL
The volume of stock solution is calculated by plugging in the values of concentration of stock solution and mass of copper along with required volume of the solution. The volume of stock solution copper is
2.5mL.
e)
Expert Solution
Interpretation Introduction
Interpretation: The volume of stock solution of each sub-division has to be calculated.
Concept Introduction: Concentration of solution can be defined in terms of molarity as moles of solute to the volume of solution. The concentration of solution can be given by,
Transfer
1mL of the
1000ppm stock solution to a
100mL volumetric flask, and dilute to the mark.
Requiredvolumestocksolutionis1mL
The volume of stock solution is calculated by plugging in the values of concentration of stock solution and mass of copper along with required volume of the solution. The volume of stock solution copper is
1mL.
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