Conversion Help Please

  • Thread starter blue4882
  • Start date
  • #1
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Main Question or Discussion Point

How many cubic centimeters of ore 0.25% by mass silver must be processed to obtain 2.0 pounds of silver? The density of the ore is 7.0 g/cm cubed. cm cubed; 1.00 pound=454 g. Assume that the process is 100% efficient.

I get the answer of 520 but the answer is 52000 and i dont understand why im so off. Can someone help me please i would really appreciate it.


Thank you :smile:
 

Answers and Replies

  • #2
mrjeffy321
Science Advisor
875
1
This is just a guess, but since your answer is off by a factor of 100, I bet the problem came when you did not divide .25% by 100 in your calculations (.25% = .0025 in decimal form).
 

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