A solution containing a metal ion (M2+ (aq)) is electrolyzed by a current of 7.8 A. After 15.5 minutes, 1.19g of the metal is plated out. What is the metal? (Assume 100% efficiency.)
A solution containing a metal ion (M2+ (aq)) is electrolyzed by a current of 7.8 A. After 15.5 minutes, 1.19g of the metal is plated out. What is the metal? (Assume 100% efficiency.)
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A solution containing a metal ion (M2+ (aq)) is electrolyzed by a current of 7.8 A. After 15.5 minutes, 1.19g of the metal is plated out. What is the metal? (Assume 100% efficiency.)
Transcribed Image Text:Mixture of naphthalene, salt, sand and coloring
Name of the substance (residue) let in the
beaker
Name of the white crystals formed at the
bottom of the bottom of the watch glass
Name of the
separation
process
Transfer to beaker + 50ml water. Let stand
for 5 minutes. Pour to another beaker.
Name of process
Name of supernatant liquid
Name of the substance (residue) left in the
beaker
Supernatant liquid + activated carbon.
Boil for 5 minutes.
Name of process
Cool. Filter.
Name of process
Name of filtrate
Name of the substance (residue) let in the
beaker
Heat
Name of proces
Name of the substance (residue) let in the
beaker
Name of the substance evaporated
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