Answers

2014-11-03T18:56:48+05:30
2Na+2H₂O⁻⁻⁻⁻2NaOH+H₂
so 46 g of Na reacts with water to give 22.4 L of H₂
so 230g of Na reacts with water to give 22.4X5=112 L of H₂
112 L of H₂=112/22.4=5 moles of H₂
mass of H₂ released=5X2=10g
number of molecules=5x6.023x
 10^{23}
                                     =30.115X 10^{23}
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