A sample 0.203g of hydrated mgcl(mgclm. nH20)was dissolved in water and treated with AgN solution 0.100mol/dm) 20.0cm being required. Another sample of hydrated chloride lost 53.2% of its mass qhen heated in a steam of Hcl leaving a residue of anhydrous Mgcl. Calculate the value of m and n

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Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.