Simple? Chemistry Problem Hello everyone, have a quick chemistry problem I'm having trouble figuring out: Q. A sample is a mixture of KCl and KBr. When 0.1024 g of the sample is dissolved in water and reacted with excess silver nitrate, 0.1889 g solid is obtained. What is the composition by mass percent of the original mixture? I'm braindead. I can't even come up with the original equation...I was thinking at first that I have to split it into two equations, [tex]KCl + AgNO_3 \rightarrow AgCl + KNO_3[/tex] [tex]KBr + AgNO_3 \rightarrow AgBr + KNO_3[/tex] But I'm not sure what to do next. Perhaps do mass composition of Chloride and Bromide ions? Ack. Please help!