Hi everyone!
I have to calculate the activity of ##Cl^{-}##
I have a solution formed by ## Na_{2}SO_{4}## 0.0016 m + ##NaCl## 0.0014m + ##FeCl_{3}## 0.0012m
I calculated the ionic strength ##I##
##I=0.0134##
The activity of the chloride ion is ##a_{Cl^{-}}=m_{Cl}*\gamma _{Cl}##
But I don't...
Hi all!
The distribution constant of stearic acid between n-heptane and acetic acid is 4.95 at
25 ° C. Determine the number of extractions from a solution of stearic acid in acid
acetic acid, with successive portions of n-heptane of equal volume to the solution, necessary
to reduce the residual...
Hi all!
I have a question ...
I have to calculate the partial pressure of O2
Ccan I calculate the mole fraction from the data of 1 ppm of O2?
The total pressure is 760 torr
Thank you!
Hi all
Knowing that ##kp## is:
##k_p=\frac{pO_2.(pNO)^2}{(pNO_2)^2}##
And knowing these relationships between the partial pressures, I obtained:
At 700 K:
##pNO = 0.872.pNO2##
##k_p=pO_2.(0.872)^2##
At 800 K:
##pNO = 2.5.pNO2##
##k_p=pO_2.(2.5)^2##
Furthermore it is known that ##pNO + pNO +...
Thank you very much Chester!
You made me not only want to find the solution, but also LEARN more!
We will surely meet here!
Thank you very much!
Greetings from Argentina! :smile::smile:
Hi Chester! you mean the 2 points ##(P; T)##:
##(2.144 ; 359.1)## and ##(78 ; 513)##
For these points, the linear equation is:
##y = -0,0002x + 0,003##
For ##ln (60)##, ##1/T## it gives me a very high and negative number.
What am I doing wrong?
Also, I know that the slope of that line...