Question

Calculate the mass percentage of hydrogen and carbon in methanol ch3oh.
Fast!!!

Answer 1

Given :

Methanol (CH$_{3}$OH) contains carbon and hydrogen.

To Find :

The mass percentage of hydrogen and carbon in methanol (CH$_{3}$OH)

Solution :

Molar Mass of Methanol (CH$_{3}$OH) = 12 + 3x1 + 16 + 1

                                                        = 12 + 3 +17

                                                       = 32

Percentage of Hydrogen in CH$_{3}$OH = $\frac{4}{32}$ × 100%

                                          =  12.5%

Percentage of Carbon in CH$_{3}$OH = $\frac{12}{32}$ × 100%

                                                       =  37.5%

Answer 2

The mass percentage of hydrogen and carbon in methanol $CH3OH$ is  $12.5$% and $37.48$% respectively

Explanation:

Methanol $CH3OH$ contains carbon and hydrogen.

The mass percentage of hydrogen and carbon in methanol  $CH3OH$  is calculated as follows :-

Molar Mass of Methanol  $CH3OH$  $= 12 + 3x1 + 16 + 1$  

                                                      $= 12 + 3 +17$

                                                      $= 32$                                      

Percentage of Carbon in $CH3OH$ =$12.01 / 32.042 X 100 = 37.48%$ %

Percentage of hydrogen in $CH3OH$ = $4.032 x 100 / 32.042$

                                                        $= 12.5%$ %