session masteringchemistry.com 2016CHEM 120 signed in as kenneth wiah H oter 2 A
ID: 983833 • Letter: S
Question
session masteringchemistry.com 2016CHEM 120 signed in as kenneth wiah H oter 2 Animation-Multiple Proportions pre Wous l 2 of 00:00 When carbon is oxidized in a small amount of oxygen, the principle product formed carbon monoxide (CO) When the oxidation occurs in a higher concentration of is mass ratio of oxygen to carbon in carbon monoxide (CO) Part A Identify the statements that are correct. Check all that apply. 2Nhe mass ratio of oxygen to carbon in co is twice the mass ratio oforygen tocarbona co, 2 The mass ratio of oxygen to carbon in CO2 is 2667 for every sample of Coa 2 The mass ratio of oxygen to carbon in CO is 133 for every sample of Co ratio o o inthe other compound e For two compounds otc and o the mass raso e to o in one oompound is a multole of the mass of C of Hints My AnswersExplanation / Answer
The correct answers are B.C,D
B is correct, since Molar mass of CO2 = 44 gm/mol
Mass of O2 in CO2 = 32 gm/mol
Mass of C in CO2 = 12 gm/mol
Ratio of O to C = 32/12 = 2.667
C is correct, since Molar mass of CO = 28 gm/mol
Mass of O2 in CO = 16 gm/mol
Mass of C in CO2 = 12 gm/mol
Ratio of O to C = 16/12 = 1.333
D is correct since
Mass ratio of 2nd compound = 2 * Mass ratio of compound
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