A 1.23 g sample which contains gold, silver and metal oxides is treated with concentrated HNO₃ which dissolves all the metals and metal oxides with the exception of the gold. The mass of yellow metal remaining is 7.4 x 10^-2 g. The solution is then treated with aqueous sodium chloride which precipitates AgCl and nothing else. A total of 0.196 g of AgCl is obtained. What is the percent gold and silver in this ore?

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The Answer of A 1.23 g sample which contains gold, silver and metal oxides is treated with concentrated HNO₃ which dissolves all the metals and metal oxides with the exception of the gold. The mass of yellow metal remaining is 7.4 x 10^-2 g. The solution is then treated with aqueous sodium chloride which precipitates AgCl and nothing else. A total of 0.196 g of AgCl is obtained. What is the percent gold and silver in this ore?

A 123 G Sample Which Contains Gold, Silver and Metal Oxides