What is the mass of 3.00 moles of ethanol, C₂H₆O?

Name: What is the mass of 3.00 moles of ethanol, C 2 H 6 O?
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Question

Quizplus · Accepted Answer

To calculate the mass of 3.00 moles of ethanol, we need to use the molar mass of ethanol, which is calculated by adding the atomic masses of all the atoms in the molecule.

C: 12 (C) + 1 (H) + 16 (O) = 29 g/mol

Now we can calculate the mass of 3.00 moles:

mass = moles x molar mass
mass = 3.00 mol x 46.07 g/mol (rounded to two decimal places) 
mass = 138 g

Therefore, the correct answer is B.

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