Q 9. What is the mass of:
(a) 0.2 mole of oxygen atoms?
The mass of 1 mole of oxygen atoms = 16 g
The mass of 0.2 mole of oxygen atoms = 0.2 x 16 g
= 3.2 g
CBSE Class 10 board exams twice a year ‘relief’ or ‘burden’? Parents, schools share mixed views
CBSE Class 10 exams twice a year from 2026; 64.4% students in favor, second attempt optional
Create Your Account
To keep connected with us please login with your personal information by phone
Dont't have an account? Register Now