2.00 mL of a 500 ppm Zn^2+ solution is diluted to a total volume of 1.00 L. What is the final concentration of Zn^2+ in ppm?
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Start with a 1040.0 ppm Stock Zn solution. Prepare control 1 by diluting 2.00 mL of Stock Zn solution in a 200.0 mL volumetric flask and dilute to the mark. Prepare control 2 by diluting 2.00 mL of control 1 into a 100.0 mL volumetric flask. What is the Zn concentration (ppm Zn) in control 2?
25.0 ml C solution is diluted to 50.0 ml and the absorbance is 0.416 in 348 nm in a 1.00-cm cuvette. 25.0 ml second solution is added 10.0 ml solution that contains 23.4 ppm of C. After diluted to 50.0 ml this solution has absorbance 0.610 in the same cuvette and wavelength. Calculate concentration (ppm) C in sample.
Determine the final concentration of a solution diluted into water.
(The acid is being added to of water. The total volume is water + acid.)