Homework Help: Chemistry

Posted by selly on Monday, November 19, 2012 at 6:34am.

Chemical analysis of a germanium crystal reveals indium at a level of 0.0003091 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Ge matrix is negligible, what is the density of free charge carriers (free carriers/cm3) in this Ge crystal?

Chemistry - ssb, Tuesday, November 20, 2012 at 2:10am
13644332370000000000
Chemistry - ssb (India), Tuesday, November 20, 2012 at 2:11am
Answer : 13644332370000000000
Chemistry - amar chauhan, Tuesday, November 20, 2012 at 6:13am
answer =1.3724*10^19
Chemistry - c, Wednesday, November 21, 2012 at 5:52pm
thanks
Chemistry - Atef (Egypt), Friday, December 14, 2012 at 11:34am
1.54*10^17
Chemistry - Anonymous, Friday, December 14, 2012 at 10:00pm
the answer above are not make sense

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