Which of the following descriptions correctly describes the silicate glass in the bulb of a pH electrode?

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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210
250
R
Which of the following descriptions correctly
describes the silicate glass in the bulb of a pH electrode?
a) The silicate glass in the glass membrane has an irregular, amorphous structure.
b) The silicate glass in the membrane is highly organized into repeating rings of SiO4 units.
c) The glass membrane is highly ordered crystalline silicate glass.
d) The hydrated gel regions of the glass are amorphous, whereas the dry glass layer is crystalline
If a pH meter obeying the relationship of "E = constant + 0.0592/n* (log A)" in its calibration
range, by what factor does the activity of H+ change if the potential difference is 177.5 mV?
b) 1000
a) 3
c) 100
d) 0.001
Transcribed Image Text:210 250 R Which of the following descriptions correctly describes the silicate glass in the bulb of a pH electrode? a) The silicate glass in the glass membrane has an irregular, amorphous structure. b) The silicate glass in the membrane is highly organized into repeating rings of SiO4 units. c) The glass membrane is highly ordered crystalline silicate glass. d) The hydrated gel regions of the glass are amorphous, whereas the dry glass layer is crystalline If a pH meter obeying the relationship of "E = constant + 0.0592/n* (log A)" in its calibration range, by what factor does the activity of H+ change if the potential difference is 177.5 mV? b) 1000 a) 3 c) 100 d) 0.001
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