[Br] (M) Potential (mV) 0.300 -21.2 Calibration data for a bromide ion-selective electrode (ISE) was collected and recor

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Br M Potential Mv 0 300 21 2 Calibration Data For A Bromide Ion Selective Electrode Ise Was Collected And Recor 1 (99.89 KiB) Viewed 34 times

[Br] (M) Potential (mV) 0.300 -21.2 Calibration data for a bromide ion-selective electrode (ISE) was collected and recorded in the table. The potential of the ISE was measured against a saturated calomel electrode (SCE). All solutions were buffered at a pH of 7.56. A linear calibration curve can be constructed from this data as a plot of potential (in mV) vs. log [Br¯]. Determine the slope and y-intercept of such a plot of the calibration data given. 0.0300 36.0 0.00300 96.3 0.000300 154.9 0.0000300 225.5 slope = y-intercept = Two unknown solutions were tested for [Br] using the same bromide ISE. The potential reading for unknown 1 was 28.6 mV, and the potential reading for unknown 2 was 116.7 mV. Using the calibration curve you constructed, determine the concentration of Br in each unknown solution. unknown 1 [Br¯] = M unknown 2 [Br¯] = M