chemistry help any know this plz ?

Question

for complete oxidation, 1 mol of an organic compound requires 3 mol of oxygen gas. what could be the formula of the compound?
and
a polymer made from two different monomers is ?options are:-polthene, nylom, PCV, protein ?

Answer 1

1) For the combustion (oxidation) of a generic alkane (saturated)hydrocarbon, the formula is:

CnH2n+2 + x O2 ====> y CO2 + z H2O

If the value of x = 3, then we can backtrack to determine the value of n. Since an x value of three gives us a total of 6 oxygen atoms, then we'd have three possibilities: y = 3, z = 0; y = 2, z = 2, or y = 1, z = 4

If y = 3, then you can only start with pure carbon, and the equation would be 3 C + 3 O2 ==> 3 CO2. But this would simplify to C + O2 ==> CO2. Not what we're looking for . . .

If y = 1 and z = 4, then CnH2n+2 + 3 O2 ==> CO2 + 4 H2O
which would translate to CH8 -- not possible!

HOWEVER, If y = 2, z = 2, you have CnH2n+2 + 3 O2 = 2 CO2 + 2 H2O and that would mean our compound was C2H4 -- not an alkane, but possible.

So, the most likely answer is that you are burning ethylene, C2H4!

2) Polyethylene is made from the ethylene monomer -- nope.
PVC - polyvinyl chloride is made from vinyl chloride -- nope.
Proteins are large biomolecules made from amino acids, but are not true polymers -- nope.
Nylon is made from alternating dicarboxylic acids and diamines, such as hexamethylene diamine and adipic acid -- DING!!!
See the reference for more on nylon.

Answer 2

pvc
poly vinyl chloride