Chemistry WAEC

Which of the following is the relative molecular mass of a compound which has empirical formula CH2O? (H = 1; C = 12; O = 16)

A. 42
B. 45
C. 126
D. 180
E. 145

Correct Answer:

Option D – 180

Explanation

Empirical formula = CH2O

= 12 + (2 x 1) + 16

= 30

Molecular formula = (CH2O)n, where n is a whole number.

= 30n

∴ From the options, only 180 is a multiple of 30. Hence, that is the only likely molecular mass with respect to CH2O.

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