Chem 1320 1st Edition Lecture 7 Outline of Last Lecture I. Translating Written EquationsII. Atomic MassesIII. Molecular Mass or Formula MassOutline of Current Lecture I. Conversion ProblemsII. Limiting Reagent Current LectureI. Conversion Problems Example 1: If there are 3.60 molecules of carbon monoxide, what is the number of moles in carbon dioxide? CO+ O2 CO2 BALANCED 2CO + O2 2CO23.6mol/ 2 Example 2: If there are 1.140 grams of KCN treated with HCL, how much HCN is formed? KCN + HCl KCl + HCN 0.0140g KCN 1mol KCN 1mol HCN 27.03g 65.11g 1mol KCN 1mol = 0.058g HCNII. Limiting ReagentThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Before the reaction starts all the molecules float around separately. After the reaction is complete some of the molecules attach to one other molecule. When 0.886 mol of NO is mixed with 0.503 moles of O2, what is the number of NO2 mol produced?2NO(g) + O2(g) 2NO2(g)NO is limiting reagent – 0.886/2 = 0.443mol2mol NO 0.886mol NO2 2mol NO2= 0.886mol
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