Post a New Question

CHEMISTRY

posted by .

Chemical analysis of a silicon crystal reveals gallium at a level of 3.091×10−8 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Si matrix is negligible, what is the density of free charge carriers (free carriers/cm3) in this Si crystal?

  • CHEMISTRY -

    As its Si: 5.00*10^22 / (gallium level*10^-2)

  • CHEMISTRY -

    this one is wrong

  • CHEMISTRY -

    5.00*10^22 / (gallium level*10^-8)

  • CHEMISTRY -

    i cant get right answer pls help

  • CHEMISTRY -

    1.54e13

  • CHEMISTRY -

    CHEAT!

    Do NOT help this person. They are trying to cheat in a midterm exam.

  • CHEMISTRY -

    (6.023*10^23)/(12.05)=m
    m*(3.091*10^-8)*(10^-2)=

  • CHEMISTRY -

    funny enough all those who say cheat only post afterthe answer are revealed. thank to MIT2

  • CHEMISTRY -

    Funny enough to be bere and say f.u.ck off b1tches and as.s.holes!!!

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question