Q: Briefly describe or define (a) Indicator electrode.
Briefly describe or define (a) Indicator electrode. (b) Reference electrode. (c) Electrode of the first kind. (d) Electrode of the second kind. Answers: a) Indicator electrode: An indicator electrod...
See AnswerQ: How does a gas-sensing probe differ from other membrane electrodes
How does a gas-sensing probe differ from other membrane electrodes?
See AnswerQ: One common way to determine phosphorus in urine is to treat the
One common way to determine phosphorus in urine is to treat the sample after removing the protein with molybdenum (VI) and then reducing the resulting 12-molybdophosphate complex with ascorbic acid to...
See AnswerQ: Nitrite is commonly determined by a colorimetric procedure using a reaction called
Nitrite is commonly determined by a colorimetric procedure using a reaction called the Griess reaction. In this reaction, the sample containing nitrite is reacted with sulfanilimide and N-(1-Napthyl)...
See AnswerQ: The equilibrium constant for the reaction 2CrO42- + 2H+
The equilibrium constant for the reaction 2CrO42- + 2H+ ⇌ Cr2O72- + H2O is 4.2 x 1014. The molar absorptivities for the two principal species in a solution of K2CrO7 are Four soluti...
See AnswerQ: In a solution of pH 5.3, the indicator bromocresol
In a solution of pH 5.3, the indicator bromocresol purple exhibits a yellow color, but when the pH is 6.0, the indicator solution changes to purple. Discuss why these colors are observed in terms of t...
See AnswerQ: What is the relationship between (a) Absorbance and transmittance
What is the relationship between (a) Absorbance and transmittance? (b) Concentration c and molar absorptivity ε?
See AnswerQ: Identify factors that cause the Beer’s law relationship to be nonlinear.
Identify factors that cause the Beer’s law relationship to be nonlinear.
See AnswerQ: Describe the differences between “real” deviations from Beer’s law and
Describe the differences between “real” deviations from Beer’s law and those due to instrumental or chemical factors.
See AnswerQ: Why do quantitative and qualitative analyses often require different monochromator slit widths
Why do quantitative and qualitative analyses often require different monochromator slit widths?
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