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.

iron and sleel

make siroeel

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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