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When we apply the Van’t Hoff factor and use the following equations- i = (1-alpha) +n*alpha (for dissociation) i = (1-alpha) + alpha/n (for association) What does n stand for???? The value of n for sodium sulphate is 3....how??

When we apply the Van’t Hoff factor and use the following equations-
i = (1-alpha) +n*alpha (for dissociation)
i = (1-alpha) + alpha/n (for association)
 
What does n stand for???? The value of n for sodium sulphate is 3....how??

Grade:11

2 Answers

Akshat Jain
74 Points
8 years ago
n stands for the number of moles formed after dissociation / association of a compound.
As  Na2SO4 will dissociate:-
Na2SO4 -----> 2Na+ + 1 SO4-2
As in above equation 2 mole of Na+ and 1 mole of SO4-2 are formed, so total number of moles after dissociation is 3.
Shubham Singh
199 Points
8 years ago
n stands for no. of molecules formed after dissociation
OR no. of molecules which associate to form one associted molecule.
For sodium sulphate n = 3 because it forms 2 molecules of Na+ and 1 molecule of SO42- 

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