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InterviewSolution
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Convert the mass of 1.5 moles of ethanol |
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Answer» tion:Use the formulan=mM where N is the amount in moles ( MOL ), m is the mass in grams ( g ), and M is the molar mass in grams PER mole ( gmol−1 ).To FIND the molar mass of ethanol:There are 2 C atoms (molar mass 12.011gmol−1 ),6 H atoms (molar mass 1.008gmol−1 ),and 1 O atom (molar mass 15.999gmol−1 )(2×12.011)+(6×1.008)+(1×15.999)=46.261176gmol−1To find the amount of ethanol:n(CH3CH2OH)=1.5g46.261176gmol−1 =3.242459724759267mol |
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