Question: consider the molecule cyclohexene, which
containsonly hydrogen and carbon atoms.
when a sample is burned in oxygen, 4.822g of co(2) and1.650g
of h(2)o are obtained.
what is its simplest formula?

The simplest formula is C₃H₅.

Explanation:

The moles of CO₂ are the moles of Carbon because oxygen is in excess. Thus, the double of moles of H₂O are the moles oh hydrogen (Double because H₂O has two hydrogens for each mole).

4,822g CO₂ × (1mol / 44,01 g) = 0,1096 moles of C

1,650g H₂O × (1mol / 18,01 g) × 2= 0,1832 moles of H

The next step is divide these numbers between the smaller one, thus:

0,1096 moles / 0,1096 moles = 1

0,1832 moles / 0,1096 moles = 1,672

The last step is to find a number to multiple that gives integers:

1 × 3 = 3 Carbon

1,672 × 3 = 5 hydrogen

Thus, the simplest formula is C₃H₅.

I hope it helps!

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.