{"id":11384,"date":"2022-11-18T16:00:08","date_gmt":"2022-11-18T10:30:08","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=11384"},"modified":"2022-11-19T16:06:17","modified_gmt":"2022-11-19T10:36:17","slug":"one-mole-particles-in-mole","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/one-mole-particles-in-mole\/","title":{"rendered":"What is One Mole and How many Particles are in a Mole?"},"content":{"rendered":"

What is One Mole and How many Particles are in a Mole?<\/h2>\n

The Mole and the Number of Particles<\/h2>\n
    \n
  1. One mole<\/strong> is defined as the amount of substance that contains as many particles as the number of atoms in exactly 12 g of carbon-12, which is 6.02 \u00d7 1023<\/sup> particles. The symbol of mole is mol.<\/li>\n
  2. In chemistry, we use the unit \u2018mole\u2019 to represent the amount of substance containing 6.02 \u00d7 1023<\/sup> particles.
    \n1 mole of copper
    \n= 6.02 \u00d7 1023<\/sup> copper atoms
    \n2 moles of copper
    \n= 2 \u00d7 6.02 \u00d7 1023<\/sup> copper atoms<\/li>\n
  3. The number of particles per mole (6.02 \u00d7 1023<\/sup> mol-1<\/sup>) is determined experimentally and is known as the Avogadro constant <\/strong>or the Avogadro number<\/strong>.
    \nThe Avogadro constant (NA<\/sub>) is defined as the number of particles in one mole of a substance.<\/li>\n
  4. The particles<\/strong> in the substances can be atoms<\/strong>, molecules<\/strong> or ions<\/strong>.\u00a0(Refer to the below table)
    \n\n\n\n\n\n\n\n\n\n
    Type of substance<\/strong><\/td>\nExamples<\/strong><\/td>\n<\/tr>\n
    Atomic substances
    \n(consist of atoms)<\/td>\n    		All metal elements such as copper and zinc.<\/td>\n<\/tr>\n
    All noble gases such as helium and argon.<\/td>\n<\/tr>\n
    Certain non-metal elements such as carbon and silicon.<\/td>\n<\/tr>\n
    Molecular substances (consist of molecules)<\/td>\nAil covalent compounds such as water and carbon dioxide.<\/td>\n<\/tr>\n
    Certain non-metal elements such as hydrogen (H2<\/sub>), oxygen (O2<\/sub>), nitrogen (N2<\/sub>), fluorine (F2<\/sub>), chlorine (Cl2<\/sub>), bromine (Br2<\/sub>), iodine (I2<\/sub>), sulphur (S8<\/sub>) and phosphorus (P4<\/sub>).<\/td>\n<\/tr>\n
    Ionic substances
    \n(consist of ions)<\/td>\n    		All ionic compounds such as sodium chloride and zinc bromide.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n
  5. Therefore, the type of particles needs to be specified carefully.
    \n(a) 1 mole of atomic substances<\/strong> contains 6.02 \u00d7 1023<\/sup> atoms. For example, 1 mole of zinc contains 6.02 \u00d7 1023<\/sup> zinc atoms.
    \n(b) 1 mole of molecular substances<\/strong> contains 6.02 \u00d7 1023<\/sup>\u00a0molecules. For example, 1 mole of water contains 6.02 \u00d7 1023<\/sup> H2<\/sub>O molecules.
    \n(c) 1 mole of ionic substances<\/strong> contains 6.02 \u00d7 1023<\/sup> formula units. For example, 1 mole of sodium oxide contains 6.02 \u00d7 1023<\/sup> formula units of Na2<\/sub>O.<\/li>\n
  6. We can find the number of particles in any number of moles of substances and vice versa using the following relationship.
    \n\"What<\/li>\n<\/ol>\n

    People also ask<\/strong><\/p>\n