Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Dean J. Campbell"'
Publikováno v:
Journal of Chemical Education. 100:1699-1703
Publikováno v:
Journal of Chemical Education. 99:3540-3545
Autor:
Thomas S. Kuntzleman, Dean J. Campbell
Publikováno v:
Journal of Chemical Education. 99:2364-2371
Autor:
Charles Xie, Travis C. Green, Alexis D. Ostrowski, Andrew T. Torelli, Desiree Ann Cochran, Dean J. Campbell, Rebekkah H. Gresh, Peter M. Blass, Kaitlyn A. Crobar
Publikováno v:
Journal of Chemical Education. 97:710-718
Infrared (IR) thermography renders invisible infrared radiation with intuitive coloration in images and videos taken of objects, reactions, and processes. Educators can take advantage of this technology to extend students’ sensory perception of che
Publikováno v:
Journal of Chemical Education. 96:2553-2559
When a laser of sufficient intensity is shined into a pigmented transparent medium, the partially absorbed laser light can heat and change the refractive index of the medium in the path of the beam. This altered medium will in turn cause the transmit
Autor:
Dean J. Campbell, Donald K. Schorr
Publikováno v:
Journal of Chemical Education. 96:308-312
For many years, a type of goldenrod-colored paper has been used as an indicator to demonstrate acid–base behavior, turning yellowish in acidic conditions and reddish in basic conditions. This pH sensitive color change has been the basis of demonstr
Publikováno v:
Journal of Chemical Education. 95:1345-1349
Observations of the rapid release of CO2 from carbonated beverages, also known as sodas, provide a rich assortment of experiments for chemical educators and their students to explore. For example, dropping Mentos candies into a freshly opened bottle
Publikováno v:
Journal of Chemical Education. 95:423-427
Iron supplement tablets containing iron(II) sulfate can be used in chemistry demonstrations as a convenient, household source of small quantities of iron(II) ions. When the tablet is burned in air, oxygen converts the iron(II) in the tablet ultimatel
Publikováno v:
Journal of Chemical Education. 95:295-299
Common phosphors found in readily available glow-in-the-dark products include transition-metal-doped zinc sulfide and transition-metal-doped strontium aluminate compounds. Phosphorescence of these materials is initiated by light with energies that ar
Publikováno v:
Journal of Chemical Education. 94:1118-1123
The purpose of this laboratory experiment is to study fundamental concepts of kinetics and equilibria and the isotope effects associated with both of these concepts. The concepts of isotopes in introductory and general chemistry courses are typically