Question
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
Answers
GPT-4o mini
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**.
- 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**.