To obtain 10.5 x 10-3 kg of sodium salt, seawater required= 1 kg
To obtain 1 kg of sodium salt, sea water required= 1/10.5 x10-3kg
To obtain 1.5 million kg of sodium salt, sea water required=1x 1.5 x 106/10.5 x 10-3 kg
To obtain 1.5 million kg of sodium salt, sea water required=0.143 x 109kg=1.43 x 108kg
To obtain 1 kg of sodium salt, sea water required= 1/10.5 x10-3kg
To obtain 1.5 million kg of sodium salt, sea water required=1x 1.5 x 106/10.5 x 10-3 kg
To obtain 1.5 million kg of sodium salt, sea water required=0.143 x 109kg=1.43 x 108kg