How many carbon and hydrogen atoms are there in Propane, respectively?
3, 8
Why propane is C3H8
Propane is an alkane, a type of hydrocarbon with the general formula CnH2n+2. The name propane indicates the prefix prop- which means 3 carbon atoms.
Alkane formula: CnH2n+2 → for n=3 → C3H8
Step-by-step
- Recognize that propane is an alkane, so use
H = 2n + 2. - For n = 3 (three carbons):
H = 2×3 + 2 = 8. - Therefore the molecular formula is C3H8 — 3 carbons and 8 hydrogens.
Compare with: Methane CH4 (n=1) and Ethane C2H6 (n=2) to see the same pattern: each time you add a carbon, hydrogen increases by 2.
Similar Questions
In 1931, who recognised that an aromatic compound must have an odd number of pairs of electrons, which can mathematically be written as 4n + 2 (n = 0, 1, 2, 3 etc.)?
The chemical formula of propene is:
Identify the correct statement with respect to unsaturated hydrocarbons.
Which of the following is a straight-chain alkyl carboxylic acid with the chemical formula CH3CH2CH2CO2H?
Important Questions from Hydrocarbons
Which of the following base is found in soap?
From the options given below, identify the substance which are sweet smelling ?
Which one of the following is the general formula of Alkenes?
What is the colour of the flame when alkenes are burnt?
Kolbe’s electrolytic method can be applied on
