Question

Mass percentage of C in ethanol(C2H5OH) is ​

Answer 1

Answer:

We can find out the mass percent of carbon in ethanol in this same way. That is,(2×12)48×100=50. In the options, there is 52.14%.

Answer 2

Answer:

Carbon = 12.0 g/mol

Hydrogen = 1.0 g/mol

Oxygen = 16.0 g/mol

The molar mass of C2H5OH = [2 x 12.0 + 6 x 1.0 +1 x 16.0] = 46.0 g/mol is the molar mass of ethanol.

Percentage of carbon,

molar mass of carbon/molar mass of ethanol×100

The percentage of carbon is :

24.0 g/mol ÷ 46.0 g/mol x 100 = 52.2% of carbon

Explanation:

Hope this helps you :-)