A nitrate ISE with a new membrane gave the following response to nitrate standard solutions prepared in an appropriate ionic strength buffer. Each solution also contained \(2.00 \times 10^{-2} \mathrm{MClO}_{4}{ }^{-}\). Graph the data and calculate the apparent selectivity coefficient for the interfering ion.

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[NO3] E (MV) 5.50 10-7 -140 6.00 x 10-7 -140 1.19 x 10-6 -143 2.50 x 10-6 -146 6.00 x 10-6 -160 2.38 x 10-5 -183 1.18 10-4 -224 1.18x 10-3 -282