![]() ![]() It by no means suggests the real oxidation numbers for the compound(s) ( Karen, 2015). It should be noted that assigning zero oxidation numbers is solely for the balancing purpose. Since a redox reaction requires the same amount of gain/loss of electrons, we first find out the increase/decrease of the oxidation numbers, which represents the number of loss/gain of electrons then we use common multiple to balance the equation with minimum integral coefficients. ↑ denotes the sum of increase of oxidation numbers and ↓ denotes the sum of decrease of oxidation numbers. We use exhaustive oxidation of glucose (C 6H 12O 6) by KMnO 4 in acidic conditions ( Guo, 1997) to illustrate this balancing process. When encountering a compound that is hard to assign oxidation number for all atoms in it, we can assign zero oxidation number for them in such redox-active compound in one side (reactant side or product side) of a reaction, in case it is easy to assign oxidation numbers for the molecules in the other side. As a special case of Ludwig’s unconventional oxidation number method ( Ludwig, 1996), a strategy using zero oxidation number to balance some redox equations is presented herein. It could be challenging for balancing organic reactions such as exhaustive oxidations of organic compounds because it might involve different oxidation numbers for same type of atoms or a fractional oxidation number on average. Chemistry Teacher International, 3(3), 313–323.For high school students and first year undergraduate students, balancing oxidation-reduction (redox) equations is a good training for understanding gain/loss of electrons and half-reaction in electrochemistry ( Andraos, 2016 Herndon, 1997 Jensen, 2009). Application of stoichiometric hydrogen atoms for balancing organic combustion reactions. Journal of Chemical Education, 74(7), 744. Physical Chemistry Chemical Physics, 16, 7647–7661. The concept, reality and utility of single-site heterogeneous catalysts (SSHCs). The relative explosive power of some explosives. Journal of Chemical Education, 72(12), 112. Redox challenges: Good times for puzzle fanatics. Journal of Chemical Education, 73(6), 507. ![]() Journal of Chemical & Engineering Data, 61(1), 207–212. A low sensitivity energetic salt based on Furazan derivative and melamine: Synthesis, structure, density functional theory calculation, and physicochemical property. ![]() Journal of Chemical Education, 58(8), 642. Balancing complex redox equations by inspection. Journal of Chemical Education, 56(3), 181. Journal of Heterocyclic Chemistry, 33, 569–574. A classification of organic redox reactions and writing balanced equations for them, with special attention to heteroatoms and heterocyclic compound. Journal of Chemical Education, 59(6), 523. Balancing chemical equations with a calculator. Oxidation state, a long-standing issue! Angewandte Chemie International Edition, 2015(54), 4716–4726. On balancing chemical equations: Past and present. A new inspection method for balancing redox equations. Journal of Chemical Education, 72(8), 716. Giomini, C., Marrosu, C., & Cardinali, M. Journal of Chemical Education, 36(2), 77. Oxidation of M4Si4 (M = Na, K) to clathrates by HCl or H2O, Journal of the American Chemical Society, 129(17), 5348–5349.īurrell, H. Journal of Chemical Education, 93(7), 1330–1334.īohme, B., Guloy, A., Tang, Z., Schnelle, W., Burkhardt, U., Baitinger, M., & Grin, Y. Using balancing chemical equations as a key starting point to create green chemistry exercises based on inorganic syntheses examples.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |