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19 Nov 2019
Green solutions of nickel (II) ions have a molar absorptivity constant (a) value of 4.89 M^-1 cm^-1 at 395 nm. When a 2.50 ml, sample of a 50.0 mL stock solution of Ni(NO_3)_2 is diluted with water to a final volume of 20.0 mL, the dilute solution is observed to have an absorbance value of 0, 452 at 395 nm in a standard cuvette (1.00 cm light path). Please calculate the mass of Ni(NO_3)_2 (FW = 182.7) contained in the original 0.0 m stock solution.
Green solutions of nickel (II) ions have a molar absorptivity constant (a) value of 4.89 M^-1 cm^-1 at 395 nm. When a 2.50 ml, sample of a 50.0 mL stock solution of Ni(NO_3)_2 is diluted with water to a final volume of 20.0 mL, the dilute solution is observed to have an absorbance value of 0, 452 at 395 nm in a standard cuvette (1.00 cm light path). Please calculate the mass of Ni(NO_3)_2 (FW = 182.7) contained in the original 0.0 m stock solution.
Bunny GreenfelderLv2
8 Nov 2019