upon combustion a compound containing only carbon and hydrogen produces 2.33 i S
ID: 698001 • Letter: U
Question
upon combustion a compound containing only carbon and hydrogen produces 2.33 i Secure 5983564 Chome Final Test Day 2 Secure https.// session masteringchemistry.com/myct/itemView offset nexts 94473943 For Practice 3.20- Enhanced-with Feedback You may wart to reference (u )Sector, 3 10 whie complong this poblem Part A on contusion, acopond cotaring only carbon ard hydom podces 239gCO, and 127gHi0Fnd timpical Irnula of th. earpurd Expeess your answer as an empirical formula My Answers Oee DOLL 8 5 6 8Explanation / Answer
mass of CO2 = 2.33 g and after dividing by the molar mass 44g =
0.053 moles of CO2 since there is 1 mole so C in CO2
= 0.053 moles of C
mass of H2O = 1.27 g and after dividing by the molar mass 18 =
0.071 moles of H2O or since there are2 moles of H in 1 moles of H2O =
0.141 moles of H
molar ratio of C : H = 0.053 : 0.141
or after dividing by the smallest 0.053
molar ratio of C : H = 1.000 : 2.665
multiply by 3 to get whole numbers and we have 3:8 .
So the emperical formula is C3H8.
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