An ore sample weighing 8.60 kg is found to contain 1.40 kg of copper. a) Calculate the percent copper in the ore. Problem-solving: 1.40 KgCu/8.6 Kg Ore times 100 = 16.279 16 % Cu b) write the percent value from a) into two conversion factors. How many kg of copper are there in 125 kg of ore? Solve this by factor-label method using a conversion factor in part b) Problem-solving: ____ kg Cu

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In part b you have the percent value of copper in the ore from part a ... View the full answer