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Silicon has been doped with 5 x 10^22 m^-3 of boron atoms. Calculate the conductivity of silicon at (a) room temperature (32 C) (b) at (125 C)
What is the freezing point of the solution. Melting point (CCl4): -22.92 C Melting point (C6H6): 5.5 C K(CCl4): 2.65 C/m K(C6h6): 3.92 C/m
A solution is made by dissolving 0.0350 mol of HF in enough water to make 1.00L of solution. At 24°C, the osmotic pressure of the solution is .975 atm.
The vapor pressure of carbon tetrachloride, , is 0.354 atm and the vapor pressure of chloroform, is 0.526 atm at 316K . A solution is prepared from equal masses of these two compounds at this temperature.
nathen and su-liu have new jobs at the fun house. they have been given the job of counting the balls in the kiddie
The rate constant of a reaction is 4.7 10-3 s-1 at 24°C and the activation energy is 33.6 kJ/mol. What is the value of k at 75°C?
The temperature after the reaction is 25.23 C. If the density of final solution is 1.02 g/mL, calculate q, if the specific heat of the solution can be assumed to be equivalent to that of water.
How do i calculate the aveage current that flowed thorugh an electrolytic cell from the delta [OH-] (3.910), volume of the solution (30mL) and the time of electrolysis (15min)
The principle quantum number defines the shell (which is roughly, but not quite exactly, the row, or period, of the periodic table). Demonstrate the difference between the rows of the periodic table
kmno4 h2so4 naso3 --gt?sodium sulfite and acidified potassium permanganate produces a brown partly dissolved solid
1. for the term symbolsnbspnbsp 3d 4d and 2gnbsp write the designation including the j values.nbsp in each case pick
The density of an unknown gas is 4.00 grams per liter at 4.00 atmospheres pressure and 127 degrees C. What is the molecular weight of the gas?
a solution that was 3.78 x 10-3 m had a transmittance of 0.212 when measured in a 2.00-cm cell. what concentration of x
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