CHEM 111 Lecture Notes - Spectator Ion, Chemical Equation, Sodium Hydroxide
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2 mg (s) + o2 (g) 2 mgo (s) 1. 2 mol mgo x (2431 + 16) g / 1 mol mgo = 50 g mgo. 30 g mg x 1 mol mg / 24. 31 g x 1 mol o2 / 2 mol mg x 22. 4 l / 1 mol o2. The study of the quantitative aspects of chemical formulas and reactions. The coefficients of a formula give the stoichiometric ratios of compounds in a reaction. Naoh (s) + hcl (aq) nacl (aq) + h2o (l) 5 g naoh x (1 mol naoh / 40 g naoh) x (1 mol hcl / 1 mol naoh) x (1 l hcl / 10 moles. A group of students determines the ion crowdness index of a 15. 0 l solution to be 6. 00 moles of ions per liter of solution. Latter two emphasize the presence of spectator ions .
