CHEM 1040 Lecture Notes - Lecture 5: Red Blood Cell, Chemical Equation, Ionic Compound

• School: University of Guelph
• Department: Chemistry
• Course: CHEM 1040
• Professor: Adrian Schwan

Document Summary

Responsible for all the descriptive material in this chapter. The only useful chemical equation is a balanced equation, i. e. one which has the correct coefficients for all reactants and products. Consider the combustion of gasoline, c8h18(l) in air (o2(g)) to yield co2(g) and h2o(l). Having the same # of elementary entities as there are in exactly 12 g of carbon 12: avogadro"s number n (na) [elementary entities may be atoms, molecules, ions, or specified groups (corn kernels). ] The term mole (abbreviated mol) replaces all terms such as grams, all of which were used to indicate a mass quantity of matter. The mass of avogadro"s number (na) of elementary entities. Mnacl = 58. 442 g/mol (proper units: g mol-1) Mg g mole molecule (900. 0 mg/ 1000 mg g-1) x (1/180. 16 g mol-1) x 6. 022 x 1023 molecules. = (900. 0 / 1000 mg) x (1/180. 16) x 6. 022 x 1023 molecules.