(solved)Question 1.30 of NCERT Class XI Chemistry Chapter 1

What will be the mass of one 12C atom in g?

Categories | About Hoven's Blog

Parveen,

Question 1.30
NCERT Class XI Chemistry

What will be the mass of one 12C atom in g?

by Measurements (method 1)

by spectroscopic measurements, the mass is 1.992648 x 10^-23 kg

by Mole Concept (method 2)

Molar mass of 12C = 12.00 g/mol

Hence, 6.022 x 10^23 atoms of 12C have mass = 12.00 g

therefore, 1 atom of 12C has mass = 12.00/(6.022 x 10^23) = 1.992648 x 10^-23 kg Ans!

Creative Commons License
This Blog Post/Article "(solved)Question 1.30 of NCERT Class XI Chemistry Chapter 1" by Parveen is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.