2+ as (6) A sample of an ore was analyzed for Cu* follows. A 1.25 g sample of the ore was dissolved in acid and diluted to volume in a 250 mL volumetric flask. A 20 ml portion of the resulting solution was transferred by pipet to a 50 mL volumetric flask and diluted to volume. An analysis showed that the concentration of Cu²* in the final solution was 4.62 ppm. What is the weight percent of Cu in the original ore?

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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2+
as
(6) A sample of an ore was analyzed for Cu*
follows. A 1.25 g sample of the ore was
dissolved in acid and diluted to volume in a 250
mL volumetric flask. A 20 mL portion of the
resulting solution was transferred by pipet to a
50 ml volumetric flask and diluted to volume.
An analysis showed that the concentration of
2+
Cu* in the final solution was 4.62 ppm. What is
the weight percent of Cu in the original ore?
Transcribed Image Text:2+ as (6) A sample of an ore was analyzed for Cu* follows. A 1.25 g sample of the ore was dissolved in acid and diluted to volume in a 250 mL volumetric flask. A 20 mL portion of the resulting solution was transferred by pipet to a 50 ml volumetric flask and diluted to volume. An analysis showed that the concentration of 2+ Cu* in the final solution was 4.62 ppm. What is the weight percent of Cu in the original ore?
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