3. A pH electrode system is calibrated with standard buffer solutions, with the following voltages observed for each: pH 4.01 111 mV; pH 7.00 = -55 mV; ph 10.01 = -215 mv. The electrode system generates a response of -30 mV when analyzing a soil solution. What is the pH of the solution? (

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3. A pH electrode system is calibrated with standard buffer solutions, with the following voltages
observed for each: pH 4.01 = 111 mV; pH 7.00 = -55 mV; ph 10.01 = -215 mv. The electrode
system generates a response of -30 mV when analyzing a soil solution. What is the pH of the
solution? (
Transcribed Image Text:3. A pH electrode system is calibrated with standard buffer solutions, with the following voltages observed for each: pH 4.01 = 111 mV; pH 7.00 = -55 mV; ph 10.01 = -215 mv. The electrode system generates a response of -30 mV when analyzing a soil solution. What is the pH of the solution? (
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