Hydrated aluminium chloride has the formula AlCl3•6H2O.
Calculate the number of moles of water of crystallization in 483g of AlCl3•6H2O
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The % water of crystallisation in the crystals is 2.25 x 100 / 6.25 = 36% [ Ar's Cu=64, S=32, O=16, H=1 ] The mass ratio of CuSO4 : H2O is 4.00 : 2.25. To convert from mass ratio to mole ratio, you divide by the molecular mass of each 'species'
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