Gold reacts with the elements in group 7 of the periodic table. 0.175g of gold reacts with chlorine. The equation

Gold reacts with the elements in group 7 of the periodic table. 0.175g of gold reacts with chlorine. The equation for the reaction is: 2Au+ 3Cl2 > 2AuCl3.

Calculate the mass of chlorine needed to react with 0.175g of gold.
Give your answer in mg
Relative atomic masses(Ar): Cl=35.5 Au=197

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