Calculate the number of free (conduction) electrons

Reference no: EM13243356

A silicon sample is doped with phosphorus at 1.17 parts per 1.00*10^6. Phosphorus acts as an electron donor, providing one free electron per atom. The density of silicon is 2.33 g/cm^3 and it's atomic mass is 28.09 g/mol.

a) Calculate the number of free (conduction) electrons per unit volume of the doped silicon in conduction electrons per cm^3

b) Compare the result from part a with the number of conduction electrons per unit volume of copper wire, assuming that each copper atom produces one free conduction electron. The density of copper is 8.96 g/cm^3, and it's atomic mass is 63.54 g/mol.

Reference no: EM13243356

Questions Cloud

Both greek and roman civilizations shared a common heritage : Greek achievements over the course of their history were all intellectual and artistic. Both Greek and Roman civilizations shared a common heritage.

What effect will increase have on aggregate supply : Suppose the government increases the retirement age to 75. Thatis, workers will not be eligible for full retirement benefits untilthey are 75. What effect will this have on aggregate supply

Determine where will output be at the new equilibrium : Assume the economy is at equilibrium and output is at 20,000. Arightward shift in the supply curve shows that the economy canproduce 26,000 at the same price as before. Where will output be atthe new equilibrium

Comment on the impact of proposed difference : Determine and evaluate the effect size and comment on the impact of proposed difference. Ask yourself and comment on your level of satisfaction with the "practical" significance of the findings.

Calculate the number of free (conduction) electrons : A silicon sample is doped with phosphorus at 1.17 parts per 1.00*10^6, Calculate the number of free (conduction) electrons per unit volume of the doped silicon in conduction electrons per cm^3

Explain constant temperature to a volume : A sample of krypton gas at a pressure of 0.621 atm and a temperature of 20.7oC, occupies a volume of 17.2 liters. If the gas is compressed at constant temperature to a volume of 5.62 liters, the pressure of the gas sample will be

Discuss process of natural selection as defined by darwin : Discuss the process of natural selection as defined by Darwin. How did Darwin's theoriesdiffer from his predecessors In your opinion, have his theoriesproved to be correct Why and why not

Explain what are the concentrations of cu2+ : If 2.50 g CuSO4 are dissolved in 8.0 x 10^2 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)4^2+, and NH3 at equilibrium

Identify another person of the renaissance : Identify another person of the Renaissance (described in Chapters 14 or 15) who would fulfill the qualities outlined by Giorgio Vasari and explain reasons why the individual fits Vasari’s description.

User Account

All Pages