13.4 g of a sample of unstable hydrated salt, Na2SO4.xH2
3.92 g of ferrous ammonium sulphate crystals are dissolved in 100ml of water. 20ml of this soluti
A suitcase is accidentally dropped from an airplane flying at an altitude of 3.2 E 4 m. With what
A gaseous mixture contains CH4 and C2H6 in equimolar proportion. The weight of 2.24 lit