How Is Propane Formed from Cyclopropane?

[viet_jon]

Say your given a Compound...

Homework Statement

Cycloppropane (C3H6) disappears and rearanges to form propane and another compound at rate of .25mol/s

Homework Equations

How do you know what the chemical formula for propane is? in order to find the rate propane is being produced?

The Attempt at a Solution

 

[Gannon]

Propane is one of the alkanes, which are usually memorized in basic chemistry classes, but the formula is C(n)H(2n+2), where n denotes the number of carbons. A carbon chain will have 2 hydrogens for each carbon, plus an additional one on each terminal carbon. For propane, n=3 as mentioned in the question (cyclic and non-cyclic will never change in number of carbons). Therefore 2n+2=8. The formula is C3H8.

You can practice this using any alkane. Butane is C4H10. Decane is C10H22.

 

[Blueshift5]

I would first analyze the given information and make some assumptions. I would assume that the reaction is taking place in a closed system, meaning that no reactants or products are being added or removed. I would also assume that the reaction is occurring at a constant temperature and pressure.

Based on these assumptions, I can use the information provided to determine the chemical formula and rate of production of propane. Since the reaction is said to rearrange to form propane and another compound, I can infer that the other compound must be the product of the rearrangement of cyclopropane. This means that the initial and final number of carbon and hydrogen atoms in the reaction must be the same, as no atoms are being added or removed.

Using this information, I can write a balanced chemical equation for the reaction:

Cyclopropane (C3H6) → Propane (C3H8) + Other compound

From this equation, I can see that the chemical formula for propane is C3H8, as it has the same number of carbon and hydrogen atoms as cyclopropane.

To find the rate at which propane is being produced, I can use the given rate of .25mol/s for the disappearance of cyclopropane. Since the reaction is stoichiometrically balanced, the rate of production of propane will also be .25mol/s. This means that for every .25mol of cyclopropane that disappears, .25mol of propane is produced.

In conclusion, by analyzing the given information and making some assumptions, I am able to determine the chemical formula for propane and the rate at which it is being produced in the given reaction.