Skip to main content
Ch.3 - Structure and Stereochemistry of Alkanes
Wade - Organic Chemistry 9th Edition
Wade9th EditionOrganic ChemistryISBN: 9780135213728당신이 사용하는 게 아니라요?교과서 변경
3장, 문제 1a

Using the general molecular formula for alkanes:
a. Predict the molecular formula of the C28 straight-chain alkane.

검증된 단계별 안내
1
Understand that alkanes are saturated hydrocarbons with the general molecular formula CnH2n+2, where n is the number of carbon atoms.
Identify the number of carbon atoms in the given alkane, which is 28 in this case.
Substitute n = 28 into the general formula for alkanes: CnH2n+2.
Calculate the number of hydrogen atoms by using the formula 2n + 2. Substitute n = 28 into this expression to find the number of hydrogen atoms.
Combine the number of carbon and hydrogen atoms to write the molecular formula of the C28 straight-chain alkane.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
1m
도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Alkanes

Alkanes are saturated hydrocarbons consisting entirely of single bonds between carbon atoms and hydrogen atoms. They follow the general molecular formula CnH2n+2, where n is the number of carbon atoms. This formula helps predict the number of hydrogen atoms in a straight-chain alkane.
추천 영상:
가이드 코스
02:47
Functionalizing Alkanes

Straight-Chain Alkanes

Straight-chain alkanes are a type of alkane where carbon atoms are connected in a linear sequence without any branching. This structure affects the molecular formula, as each carbon atom contributes to the overall count of hydrogen atoms according to the alkane formula CnH2n+2.
추천 영상:
가이드 코스
02:47
Functionalizing Alkanes

Molecular Formula Prediction

Predicting the molecular formula involves applying the general formula for alkanes, CnH2n+2, to determine the number of hydrogen atoms in a molecule. For a C28 straight-chain alkane, substituting n=28 into the formula gives C28H58, indicating 28 carbon atoms and 58 hydrogen atoms.
추천 영상:
가이드 코스
01:54
Predict the hybridization and molecular geometry