Yeah that's right. It's calculating the activity coefficient that is tricky.
i see, thank you. but i have another way of calculating the mean ionic activity, which is [(0.0325 x 4 )^4 (0.0325)]^(1/5) x mean activity coefficient.
and i get a different value, is this method correct?
i see, thank you. but i have another way of calculating the mean ionic activity, which is [(0.0325 x 4 )^4 (0.0325)]^(1/5) x mean activity coefficient.
and i get a different value, is this method correct?
I can't tell what that thing is by looking at the numbers. What is the name of the model you used?
I can't tell what that thing is by looking at the numbers. What is the name of the model you used?
sorry i couldnt tell. But im given this sets of formula by my teacher:Mean activity, a+- = (a+.a-)^(1/2) mean activity coefficient, y+- = (y+.y-)^(1/2) Mean molality, m+- = (m+.m-)^(1/2) a+- = (y+-)(m+-)
sorry i couldnt tell. But im given this sets of formula by my teacher:Mean activity, a+- = (a+.a-)^(1/2) mean activity coefficient, y+- = (y+.y-)^(1/2) Mean molality, m+- = (m+.m-)^(1/2) a+- = (y+-)(m+-)
Use the Davies model to calculate the activity coefficients and activities for each ion, then use those formulae to calculate what the question asks for.
Use the Davies model to calculate the activity coefficients and activities for each ion, then use those formulae to calculate what the question asks for.
those formulae can be used? since i dun have the molality