Home UP BOARD Question Papers NCERT Solutions Sample Papers CBSE Notes NCERT Books CBSE Syllabus

Calculate the Mass Percent of Different Elements Present in Sodi Exercise Chapter 1 Some Basic Concepts of Chemistry

Calculate the mass percent of different elements present in sodium sulphate Chapter 1: Some Basic Concepts of Chemistry Chemistry Class 11 solutions are developed for assisting understudies with working on their score and increase knowledge of the subjects. Question 2:  Calculate the mass percent of different elements present in sodium sulphate (Na2SO4) is solved by our expert teachers. You can get ncert solutions and notes for class 11 chapter 1 absolutely free. NCERT Solutions for class 11 Chemistry Chapter 1: Some Basic Concepts of Chemistry is very essencial for getting good marks in CBSE Board examinations

Language of Video is English or Hindi

Answer

$$Mass;\% ;of;an;element; = ;{{molar;mass;of;component} over {molar;mass;of;compound}}; imes ;100$$
The molecular formula of compound (Na2SO4).is
Use Appendix II of NCERT book at page 232
= [(2 × 22.99) + (32.06) + 4 (16.00)]
= 142.04 g
Molar mass of 2Na  =  2 × 22.99  = 45.98 amu
Molar mass of 4O  = 4 × 16.00  = 64.00 amu
Plug the values in above formula
Mass percent of sodium:  =  45.98 ×100 /142.04 = 32.37%
Mass percent of sulphur:  = 32.06 ×100 /142.04 = 22.57%
Mass percent of oxygen:  = 64.00 ×100 /142.04 = 45.06%

Important Links

NCERT CBSE Notes Class 6 - 12 Download pdf

Ncert Solution for class 6 to 12 download in pdf

CBSE Model test papars Download in pdf

NCERT Books for Class 1- 12 Hindi & English Medium

Mathematics Biology Psychology
Chemistry English Economics
Sociology Hindi Business Studies
Geography Science Political Science
Statistics Physics Accountancy

CBSE Syllabus Class 9 to 12 Year 2021-22

Last year CBSE Question paper

Important Links

Follow Us On

Face book page ncerthelp twitter page youtube page linkdin page

Solved Last Year Question Paper

If You have any problem/query related to above page please send us your Query to ncerthelp@gmail.com with code Serial No655/108. Thanks

Please Share this webpage on facebook, whatsapp, linkdin and twitter.

Facebook Twitter whatsapp Linkdin

Copyright @ ncerthelp.com A free educational website for CBSE, ICSE and UP board.