Intrinsic and extrinsic silicon semiconductors

[wonder]

Can some1 please assist me with this question,i have tried every means possible with no avail.
1,
A wafer of intrinsic silicon is deliberately doped with 3 X 10^20/m^-3 of acceptor atoms
1, CAlculate the electron and hole concntration in the wafer
2,calc the position of the Fermi level in the band-gap
3calculate the conductivity of the wafer

Constants
q = 1.6 X 10^-19C,k = 1.38 X 10^-23J/K = 8.6 X 10^-5eV/K,ni = 1.45 X 10^16m-3,Nc= 2.5 X 10^25m^-3,EG(Si)= 1.1eV...
Thanks a lot in advance for your assiatance

Homework Equations

The Attempt at a Solution

 

[nickjer]

You need to attempt a solution before anyone can help you. And please show your work.