solid sodium reacts violently with water producing heat, hydrogen gas and sodium hydroxide. How many molecules of hydrogen gas are produced when 65.4g of sodium are added to water? 2Na(s)+ 2H2O(l) -->. 2NaOH(aq) + H2(g)
molar mass of sodium=23g 2 mole sodium gives 2 g H2 i.e 46g sodium gives 2g H2 so 65.4g will give=2.84g H2 now no. of molecules = 2.8/2*avogadros number
