What is Cells? The device which convert electrical energy into chemical energy or chemical energy into electrical energy is called cell. Types of Cells Cells are of two types; 1.…
What are Electrolytes? An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. The dissolved electrolyte separates into cations and…
What are Conductors? Conductors are those substance from which electric current can pass through are called conductors. Metals are good conductor of electricity. eg: copper, silver, tin. Types of Conductors…
What is Rutherford Model? Greek philosopher Democritus was concerned to know that how a piece of matter can be cut into so many smaller pieces. He also believed that it…
What is Molality? A final way to express the concentration of a given solution is by calculating its molality. The molality (m) of a solution is defined as the moles…
What is Mass Number? The sum of number of protons and neutrons is termed as the mass number of an atom. It is represented by using the letter ‘A.’ The…
What is Thomson Atomic Model? Thomson atomic model was proposed by William Thomson in the year 1900. This model described the inner structure of the atom theoretically. This theory was…
What is Rutherford Atomic Model? In 1904, J.J. Thomson proposed the plum pudding model of an atom. He stated that an atom is a positive charge sphere in which electrons…
What is Molarity? The molarity (M) of a solution is defined as the number of moles of solute dissolved in one liter of solution. To analyze the molarity of a…
What is Mole Fraction? The mole fraction is defined as the ratio of number of moles of a given component present in a solution to total number of moles present…