_a-brief-history-of-ph-meter.jpg "A brief History of pH Meter from free use bangladesh Video Screenshot Preview")
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⏲ Duration: 2 min 39 sec
✓ Published: 01-Apr-2023
✓ Published: 01-Apr-2023
Description:
PH MeternFirst pH meter was constructed in 1934 by Arnold Beckman. Glass pH electrode that have potential dependent on activity of H+ ions was constructed much earlier, in 1906 by Fritz Haber and Zygmunt Klemensiewicz, but the technical difficulties were preventing large scale use of potentiometric measurements of the pH (note that before 1909 pH was not called this way). Main problem was caused by large internal resistance of glass electrodes, which make measurements very difficult. To obtai
PH MeternFirst pH meter was constructed in 1934 by Arnold Beckman. Glass pH electrode that have potential dependent on activity of H+ ions was constructed much earlier, in 1906 by Fritz Haber and Zygmunt Klemensiewicz, but the technical difficulties were preventing large scale use of potentiometric measurements of the pH (note that before 1909 pH was not called this way). Main problem was caused by large internal resistance of glass electrodes, which make measurements very difficult. To obtai
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