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Unformatted text preview: What mass of oxygen will react with 96.1 grams of propane? First, write the balanced reaction: C 3 H 3(g) + 5 O 2(g) 3 CO 2(g) + 4 H 2 O (g) Second, convert the mass to moles. Note that the molecular weight of propane is 44.1 g/mole. Baking soda ( NaHCO 3 ) is used as an antacid. It neutralize excess HCl secreted by the stomach. NaHCO 3 + HCl (aq) NaCl (aq) + H 2 O (l) + CO 2(aq) How many moles of HCl are neutralized per gram of NaHCO 3 ? We set this problem up similar to the previous one: Now try this one at home. Milk of Magnesia ( Mg(OH) 2 ) is also an antacid, and the chemical reaction is Mg(OH) 2 (s) + 2HCl (aq) 2 H 2 O (l) + MgCl 2(aq) Try this one on your own: Which neutralizes more HCl per gram, NaHCO 3 or Mg(OH) 2 ?...
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