CHM 131 Lecture Notes - Lecture 6: Titration, Chemical Substance, Sodium Hydroxide
27 Sep 2016
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Tums e-x tablets are advertised as an antacid and as a calcium supplement. The package states that the normal dosage of 2 tablets provides 600 mg of calcium and 2 g of sucrose (10 calories). The balance is other and equals 11. 2% of the total mass. Starch, talc, mineral oil, artificial & natural flavors, etc. Two tums e-x tablets are added to 310 ml of 1. 2 x 10^-1 m hcl solution. Agno3 (aq) + nacl (aq) agcl (s) + nano3 (aq) Caco3 (aq) + 2hcl (aq) h2co3 (aq) + cacl2 (aq) In a complete ionic equation all substances that are strong electrolytes are represented as ions. Ag+ + no3- + na+ + cl- agcl (s) + na+ + no3- Ca2+ (aq) + (co3)2- (aq) + 2 h+ (aq) + 2cl- (aq) h2co3 (aq) + ca2+ (aq) + 2cl- (aq) Net ionic equation: include only those solution components that are directly involved in the reaction.
