Category: Ch 1 – Some Basic Concepts of Chemistry

How to make the subject Chemistry easy for children? Chemistry involves many equations and thus conceptual teaching can help students develop interest towards this subject. What is matter? Anything has occupies space and has mass can be defined as matter in Chemistry. Should a student be good in Maths to solve the CBSE Class 11…

Define mass and write its SI unit? Calculate the number of atoms in 52 moles of Ar and 52 g of He. What is the mass per cent of elements present in Na2SO4 What is the difference between 0.50 mol Na2CO3 and 0.50 M Na2CO3

There are five basic laws that govern the chemical combination of elements. They are as follows: Law of Conservation of Mass It states that during a chemical reaction, the mass of the products and reactants will always be equal. Law of Definite Proportions It states that every chemical compound will contain a fixed and constant…

Chemistry is referred to as the “Central Science” as it interconnects geology, biology, environmental science, and physics to each other. Ancient Indians had knowledge of various concepts from chemistry even before it emerged as a discipline. In chemistry, one of the core fundamental concepts is matter – it is defined as a substance that occupies…