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pH meters are precise to +/- 0.1 to +/- 0.01 pH unit (+/- 6 to +/- 0.6 mV) qith a full-meter scale of 14 pH units (about 840 mV)

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What is the role of buffer solutions in complexometric titration?

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What part of speech is precision?

Precision is a noun.


How can you make a sentence for precision?

it means i precision you


What is the role of phosphoric acid in titration?

Phosphoric acid is often used as a buffer in titration reactions to stabilize the pH of the solution. It helps maintain a constant pH by resisting changes in acidity when small amounts of acid or base are added during the titration process. This is important for ensuring the accuracy and precision of the titration results.


What is precision?

Precision is a writer's attention to accuracy in world choice.


Precision and non-precision measuring instrument?

precision instrument: caliper, micrometer non-precision measuring instrument: your hand, a piece of string


What is the expected precision and accuracy of pH meters?

The accuracy of a pH meter is +/- 5 percent. Of course, it should be properly calibrated with a known pH buffer solution or it will be even more inaccurate. The reason why there is up to 5% inaccuracy even for a calibrated instrument is the presence of a 'junction potential' at the tip of the probe. The junction potential is the potential difference across the interface between the sample solution and the liquid inside the pH probe. Fortunately, junction potentials are very small (<50 mV usually), so the error they cause is not very high, 5 % is something of a worse case scenario. However, this 5 % inaccuracy is quite fundamental, and exists even for expensive instruments. However, poorly calibrated or faulty pH meters are by far the bigger problem. For more accurate pH measurements, some kind of titration procedure using standardised solutions and appropriate indicators could be used.


What is the latin word for precision?

subtilis : precisesubtilitas: precision