Atoms and molecules
- 1. Magic of Science 爼爼逗爿爼爼鉦爼 爼爼鉦爿 Atoms, molecules- matters 爼爼萎爼鉦爿, 爼爼爿- 爼爼爼鉦萎爼 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷ Basanta Kumar Parida IPR Gandhinagar Gujarat
- 2. 9-Oct-20 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida 2
- 3. 9-Oct-20 3 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida
- 4. 9-Oct-20 4 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida
- 5. 9-Oct-20 5 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida What is a Molecule? A molecule is in general a group of two or more atoms that are chemically bonded together, that is, tightly held together by attractive forces. A molecule can be defined as the smallest particle of an element or a compound that is capable of an independent existence and shows all the properties of that substance. Atoms of the same element or of different elements can join together to form molecules. 爼爼爿 爼爼? 爼爼爿 爼項爼爼爼 爼項爿爼橿逗 爼爼逗爼爼 爼項爿爼爼逗爼 爼爿爼劇爼爿爼萎む 爼爼爼逗爼 爼爼鉦爼 爼伍爿園鉦о爼 爼爼鉦爼項 爼萎爼逗爼鉦爿 爼伍爼萎爼 | 爼項爿爼橿逗 爼爼爿 爼伍爼爼鉦む爿 爼爼萎爼鉦爿爼項 爼爼爼逗 , 爼項爿爼爼逗爼 爼爼爿 爼蹁爼鉦о逗 爼爼伍爼爼鉦む爿 爼爼萎爼鉦爿 爼爿 爼項爼 爼爼爼逗
- 6. Molecules are represented by formulae 爼爼爿爼爿爼÷逗 爼伍爼項爼 爼爿爿園鉦萎 爼爿爼萎爼鉦 爼爼萎鉦爼鉦 9-Oct-20 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida 6 hydrogen chloride H+Cl 諮駒 爼項鉦爼÷爼萎鉦÷爿爼爿 爼÷爿爼迦鉦萎鉦爼鉦 aluminium oxide Al+OAl2O3 爼爼迦 爼爼逗爼逗爼爿 爼爼爿爼伍鉦
- 7. 9-Oct-20 7 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida Just like atom is having atomic mass Molecules do have Molecular Mass 爼÷爿爼爼萎鉦爼 爼爼萎鉦爼爼鉦爿爼÷爼萎鉦 爼爼鉦萎鉦爼爼鉦爼爼逗 爼爼伍爼む爼む爿 爿爿爼項鉦爼鉦 爼÷爿爼爼逗む 爼爼爿爼爿爼÷逗爼÷爼萎鉦 爼爼爼爼逗 爼爼伍爼む爼む爿 爿爿爼項鉦爼鉦 Molecular mass of hydrogen chloride 諮駒-1+35.5=36.5 amu or u 爼項鉦爼÷爼萎鉦÷爿爼爿 爼÷爿爼迦鉦萎鉦爼鉦 爼爼爼爼逗 爼爼伍爼む爼む爿 諮駒-1+35.5=36.5 amu or u Water (H2O) molecular mass 2H+O-21+16=18u 爿爼橿萎鉦 爼爼爼爼逗 爼爼伍爼む爼む爿 2H+O-21+16=18u
- 8. Mole concept-爼項爼鉦迦 9-Oct-20 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida 8 One-1100 Ten-10 101 Hundred-100- 102 Thousand-1000 103 Lakh -100,000 105 Million- 1000000 106 Crore -10000000 107 Billion 1000000000 109 Mole-623000000000000000000000 6.0231023 爼蹋 -1 100 爼爼 -10 101 爼謹÷爼-100 102 爼項爼鉦÷爼萎鉦 -1000 103 爼迦爿爼 -100,000 105 爼爼逗迦逗爼爿- 1000000 -106 爼爼 爼迦爿爼 爼÷爿爼鉦爼 -10000000-107 爼爼逗迦逗爼 1000000000 - 109 爼÷爼爼鉦迦-623000000000000000000000- 023
- 9. 9-Oct-20 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida 9 1 mole of hydrogen atom- 6.0231023 numbers Hydrogen atoms 1 mole of CaO molecule -6.0231023 numbers CaO 1 Mole of water molecule -6.0231023 numbers water H2O molecules 爼項鉦爼÷爼萎鉦÷爿爼爿 爼爼萎鉦爼爼鉦爿爼萎鉦 1 爼÷爼爼鉦迦- 6.0231023 爿爼爼爿爿爿 爼項鉦爼÷爼萎鉦÷爿爼 爼爼萎鉦爼爼鉦爿 1 爼÷爼爼鉦迦 CaO= 6.0231023 爿爼爼爿爿爿 CaO 1 爼÷爼爼鉦迦 爿爼 爼爼爿 = 6.0231023 爿爼爼爿爿爿 爿爼橿爼爿
- 10. 9-Oct-20 10 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida 1 mole of an element=gram atomic mass of that element =convert the atomic mass into gram 1 mole of hydrogen atom-6.0231023 numbers Hydrogen atoms= 1gm 1 mole of H2O water molecule- 6.0231023 H2O water molecule= 18gm 爼蹋 爼÷爼爿爼橿逗 爼爼 爼÷爿爿爼爼逗爼萎鉦 1 爼÷爼爼鉦迦 爼萎鉦 爼爼伍爼む爼む爿 = 爼÷爿爼項 爼爼爼鉦爼鉦爼萎鉦 爼爿爼萎鉦 爼爼鉦萎鉦爼爼鉦爼爼逗 爼爼伍爼む爼む爿= 爼爼鉦萎鉦爼爼鉦爼爼逗 爼爼伍爼む爼む爿 爼爿爼萎鉦爼÷爼萎鉦 爼爼萎鉦爼逗爼 爿爼萎鉦 1 爼÷爼爼鉦迦 爼項鉦爼÷爼萎鉦÷爿爼爿 爼爼萎鉦爼爼鉦爿- 6.0231023 爿爼爼爿爿爿 爼項鉦爼÷爼萎鉦÷爿爼 爼爼萎鉦爼爼鉦爿=1 gm 1 爼÷爼爼鉦迦 爿爼 爼爼爿 =6.0231023 爿爼爼爿爿爿 爿爼 爼爼爿 =18gm
- 11. 9-Oct-20 11 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida 16 u oxygen has only 1 atom of oxygen, 16 g oxygen has 1 mole atoms, that is, 6.023 1023 atoms of oxygen 16 amu 爼爼爼橿爼鉦爼÷爼萎鉦 爼÷爿爼爼 1 爼爼萎鉦爼爼鉦爿 爼爼爼橿爼鉦 爼爼爼, 16 g 爼爼爼橿爼鉦爼÷爼萎鉦 1 爼÷爼爼鉦 爼爼萎鉦爼爼鉦爿 爼爼爼, 爼爼萎爼ム鉦む 6.0231023 爼爼萎鉦爼爼鉦爿 爼爼爼橿爼鉦 | Calculate the molecular masses of H2, O2, Cl2, CO2, CH4, C2H6, C2H4, NH3, CH3OH 爼蹋爼爿爼萎鉦 爼爼爼爼逗 爼爼伍爼む爼む爿 爼÷爿爼÷爼 爼÷爼項 H2, O2, Cl2, CO2, CH4, C2H6, C2H4, NH3, CH3OH H2 =2gm O2=2*16=32gm Cl2=2*35.5=71gm CO2=12+32=44gm CH4=12+4=16 C2H6=30 C2H4=28
- 12. 9-Oct-20 Magic of Science/ 爼爼伍爿爼 爼爿爼爼鉦 爼爼萎逗÷/ Basanta Kumar Parida 12