# chemistry

Determine the ionic strength of the solution formed by combining the following two aqueous solutions:
Potassium iodide (aq), KI: 70.0 mL, 0.203 M
Ammonium sulphate (aq), (NH4)2SO4: 35.0 mL, 0.246 M

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1. This is a long and tedious problem. Rather than trying to work it out in detail let me ask you what it is you don't understand. There are several sites on the Internet that give specific instructions how to calculate ionic strength as well as the Debye-Huckel theory.

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DrBob222
2. im not seeming to get the right ans. i used .5(CiZi) but still not working

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3. Why not post your work and I'll find the error.
Did you correct for the M; i.e.(KI) = 0.203 x (70.0/105) = ?M
and [(NH4)2SO4] = 0.246 x (35.0/105) = ?M

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DrBob222

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