Find the percentage composition of carbon in H5C2O

53.33%

Explanation:

First, let us calculate the molar mass of H5C2O. This is illustrated below:

MM of H5C2O = (5x1) + (2x12) + 16

= 5 + 24 + 16 = 45g/mol

There are 2 atoms of carbon in H5C2O.

Therefore, the percentage composition of carbon in H5C2O is given by:

(24/45) x 100 = 53.33%

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.