Question

A saturated hydrocarbon contains 82.66% carbon molecular formula

Answer 1

Answer:

Since 82.66 + 17.34 = 100.00, this compound is a hydrocarbon, with no other element present.

Therefore the hydrocarbon of the question will be a saturated alkane of the molecular form C(n)H(2n+2).

Atomic mass of carbon: Defined to be 12.00

Atomic mass of hydrogen: Measured as 1.008

So, 82.66/12 = 6.8883 atoms of carbon

correspond to 17.34/1.008 = 17.202 atoms of hydrogen.

Dividing, we find 17.202/6.8883 = 2.497 ≈ 2.5 atoms of hydrogen for every atom of carbon.

the mass of carbon in 1 mole is 82.66 % of 58.12 = 48g or 4 moles of C

we have (100 - 82.66 ) % of H = 17.34 % of 58.12 = 10g or 10 moles of H

molecular formula is C4H10 ... butane