Chemistry

What is the ionic strength of 0.2 M Na2HPO4 in a solution?

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  1. https://en.wikipedia.org/wiki/Ionic_strength

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  2. 0.8

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  3. The ionic strength of a 0.2 M Na2HPO4, solution will

    be

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  4. Ionic strength of 0.2 M Na2HPO4 is 0.6 M

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  5. 0.6 M is the ionic strength.
    0.2 M * 2 *(1)^2+ 0.2 M * 1 * (-1)^2
    = 0.6

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  6. =1/2 [0.2x2x1*2 + 0.2x1x(-2)*2]
    =1/2 [0.4 + 0.8]
    =1/2 [1.2]
    = 0.6

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  7. I=1/2{C1Z1^2+C2Z2^2+......}
    =1/2{0.2×2×1^2+0.2×1×(-1)^2+0.2×1×(-3)^2
    =1/2{0.4+0.2+1.8}
    =1/2{2.4}
    =1.2M

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