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| 1. |
Calculate the no. of particles present in 51g of Al2O3 |
| Answer» 1 mole of Aluminium Oxide (Al2O3) = 2 × 27 + 3 × 16 = 102 g. ...We know, The number of ATOMS present in given mass = (Given mass ÷ molar mass) × AVOGADRO number.Then, 0.051 g of Aluminium Oxide (Al2O3) contains.= (0.051 ÷ 102 ) × 6.022 × 1023 MOLECULES of Aluminium Oxide (Al2O3)EXPLANATION:i will think so | |