Use the table of molar masses to complete the question. Do NOT use any other values except the ones provided in the table below. Element Molar Mass (g/mol) carbon 12.01 hydrogen 1.01 oxygen 16.00 Using only the molar mass values provided in the table above, correctly calculate the molar mass of Ethanol ( CH3CH2OH ) and type in the value below. (Your answer should be a number with 2 decimal places; i.e. the hundredths place).  (2 points) The molar mass of Ethanol is:  grams

1 answer

To calculate the molar mass of ethanol (C2H5OH or CH3CH2OH), we need to sum the molar masses of all the atoms in the molecule:

  • Carbon (C): 2 atoms × 12.01 g/mol = 24.02 g/mol
  • Hydrogen (H): 6 atoms × 1.01 g/mol = 6.06 g/mol
  • Oxygen (O): 1 atom × 16.00 g/mol = 16.00 g/mol

Now, add these values together:

\[ 24.02 , \text{g/mol} + 6.06 , \text{g/mol} + 16.00 , \text{g/mol} = 46.08 , \text{g/mol} \]

Thus, the molar mass of ethanol is 46.08 grams.