#1
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 + 3Cl = 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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1 year ago
#2
(Original post by GCSSEEE20211)
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 + 3Cl = 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
2 mol of gold reacts with 3 mol of chlorine, so calculate your mol of gold (Mass/AR) and multiply by three to find the mol of chlorine required, then multiply Mol(Cl) * Ar(Cl).
Last edited by Jbeil; 1 year ago
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