Asked by First

A chemistry student was able to recover 98 grams of copper from a redox reaction experiment. How many moles of copper was she able to recover?

________ moles of copper. Do NOT enter the unit and report your final answer with 3 SFs.
Answered by oobleck
divide 98 by the atomic weight of Cu.
Answered by First
@oobleck so it would be 98/63.546?
Answered by DrBob222
Yes, but I don't understand how you can give an answer to 3 s.f. when 98 has only 2 s.f.
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