How many carbons does propane have?
Three. Propane is C3H8, a (hydrocarbon) molecule containing 3 carbon atoms and 8 hydrogen atoms.
There are three carbons that's what makes it "pro-pane" and two hydrogens for each carbon except the ends which have three. Hydrocarbons are made of only carbons and hydrogens so you just know to use the right number of carbons and attach as many hydrogens as needed to complete the carbons. C3 H 8 pro equals three (carbons)
there are 8 hydrogen atoms present in propane. There is 8 hydrogen atoms in propane, Each carbon has a valency of 4, 4 bonds with other atoms. Hydrogen has valency of 1. the general formula for alkanes is CnH2n +2 (n means number of that atom.) so to find how many hydrogens there with, say, 50 carbons you would do CnH2n + 2= C50H102. :)
The difference is the bonds between the first pair of carbons. A Carbon atom requires 4 bonds in a molecule. In Propane, the three carbons have 1 bond between each of them, and the rest of their bonds are used for hydrogen, resulting in a C3H8 molecule. In Propene, the first 2 carbons will have a double bond, resulting in 2 less hydrogens in the molecule, C3H6. The difference between alkanes and alkenes are that…