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In terms of nanometers, what would the size be of an individual sulfate ion in solution?

Would its size exceed 0.5 nm? Enough to displace something that is held together with a gap of 0.35 nm?

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The radius of a sulfate ion is 0.242 +/- 0.007 nm. (Yirhak Marcus. Chem. Rev. 1988, 88, 1475-1498.)
In order to know if it would displace something could you tell us what exactly you are trying to displace?

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