What is the percent composition of c4h10?

- C = 82.66% and H = 17.34%

Solution:- To calculate the percentage composition we divide the mass of each atom in the molecule by the molar mass of the molecule and multiply by 100.

The given molecule is . It has four carbons and 10 hydrogens. So, to get the mass of carbon we multiply the atomic mass of C by 4. Similarly to get the mass of hydrogen we multiply the atomic mass of H by 10.

mass of C = 4(12.01) = 48.04 g

mass of H = 10(1.008) = 10.08 g

Molar mass of molecule = 48.04 g + 10.08 g = 58.12 g

mass percentage of C =

= 82.66%

mass percentage of H =

= 17.34%

So, has 82.66% carbon and 17.34% hydrogen by mass.

16

explanation:

the marks go by 4s

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.