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Your search keyword '"Zinc -- Chemical properties"' showing total 2 results
Start Over Descriptor "Zinc -- Chemical properties" Publisher american chemical society division of chemical education
2 results on '"Zinc -- Chemical properties"'

1. A simple penny analysis

Author

Thomas, Nicholas C. and Faulk, Stephen

Subjects
Chemistry -- Study and teaching, Coins -- Composition, Stoichiometry -- Evaluation, Zinc -- Chemical properties, Chemistry, Education, Science and technology
Abstract

A simple procedure to measure the zinc content of pennies by the reaction of the coins with acid and measuring the volume of hydrogen generated is demonstrated. The procedure illustrates simple chemical principles and students learn to used basic gas law and stoichiometry calculations and calculate the percent of zinc in the penny.

Published
2008

2. Zinc biosorption by seaweed illustrated by the zincon colorimetric method and the Langmuir isotherm

Author

Areco, Maria Mar, dos Santos Afonso, Maria, and Valdman, Erika

Subjects
Marine algae -- Environmental aspects, Marine algae -- Research, Sorption -- Analysis, Zinc -- Chemical properties, Chemistry, Education, Science and technology
Abstract

An experiment is conducted to promote biotechnology knowledge that is an emerging technology on cleaning treatment, showing the potential of seaweed to remove heavy-metal ions from solution. The rapid and accurate determination of zinc in aqueous solution by the zincon colorimetric method gives an interesting and simple experiment for any biotechnology program that deals with environmental contamination.

Published
2007

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