Chemistry WAEC

An organic compound has the empirical formula CH2. If its molar mass is 42gmol ‾¹, what is its molecular formula? (C = 12.0, H = 1.0)

A. C2H4
B. C3H4
C. C3H6
D. C4H8

Correct Answer: Option C

Explanation

Given the molecular formula, CH2.

The empirical formula will be (CH2)n= 42

(12+(2×1))n=42
⇒ 14n=42

n = 3, hence the empirical formula is C3H6

Sunday

Share
Published by
Sunday
Tags: Chemistry

Recent Posts

List of Universities Offering Veterinary Medicine in Nigeria

Veterinary medicine is the branch of medicine that deals with the prevention, diagnosis, and treatment…

4 months ago

List of Universities Offering Anthropology in Nigeria

Anthropology is the scientific study of human beings and their cultures. It encompasses a wide…

4 months ago

List of Universities Offering Sociology in Nigeria

Sociology is the scientific study of human society, culture, and behavior. It examines the social…

4 months ago

List of Universities Offering Social Work in Nigeria

Social Work is a profession dedicated to helping individuals, families, and communities to cope with…

4 months ago

List of Universities Offering Religious Studies in Nigeria

Religious studies is an academic discipline that explores the beliefs, practices, and history of various…

4 months ago

List of Universities Offering Public Administration in Nigeria

Public administration is the field of study and practice that focuses on the organization and…

4 months ago