SOLVED: Natural water sample (10 mL) was pipetted into a 50.00 mL volumetric flask. Exactly 0.0050, 5.00, 10.00, 15.00, and 20.00 mL of a standard solution containing 12 ppm of Fe^3 were added to each flask, followed by an excess of thiocyanate ion to give the red complex [Fe(SCN)2 ]. After dilution, the volume absorbance readings of the five solutions, measured with a photometer equipped with a green Miltel, were found to be 0.240, 0.437, 0.621, 0.809, and 0.009, respectively (using 0.982 cm c
SOLVED: Natural water sample (10 mL) was pipetted into a 50.00 mL …
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Volumetric Flask: Sizes, Functions & Uses In Chemistry Labs
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