-
Chemistry X | Acid, Bases and Salts: NCERT Solved Questions
Acid, Bases and Salts: NCERT Solved Questions Question 1. You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution respectively. If you are given only red litmus paper, how will you identify the contents of each test tube ?…
-
Chemistry IX | Matter-Its Nature and Behaviour: Mole Concept | Part 3
Matter-Its Nature and Behaviour: Mole Concept INTRODUCTION Atomic Mass · The average relative mass of an atom of an element as compared to the mass of an atom of carbon (C12) taken as 12. In other words atomic mass is a number which expresses as to how many times an atom of the element is…