Pair it with a hydrogen half cell
silica
pH i think... right?
The exact age of the rock.
You can measure the effectiveness of an oatmeal soap as anti-acne based on the reduction of acne on your face
density
This is a table with values in volts for the standard reduction potentials of metals to a cathode.
yes
SI unit system is used by all scientists.. Hence, it is a standard unit for measurement.
Have scientists in all parts of the world long used metric systems?
Scientists use the metric or SI units of measurement.
Measure a cyclic voltammogram (CV) of a well-characterized compound, such as ferrocene, whose reduction potential is very well known. If the potential you measure matches the literature value, then your reference electrode is fine. If it does not, then you can determine how far off it is from the difference of where the peaks in the CV should be compared to where you measured them.
Scientists want to measure EVERYTHING...
To measure temperature, scientists use:KelvinCelsiusFahrenheit.
It will. There is an actual sensor used in commercial pools, (ORP sensor: Oxidation Reduction Potential) that measure conductivity, the more chlorine the more conductivity.
Scientists use seismographs.
The question makes no sense because metric measure are standard measures. In all countries except recalcitrant countries like US, Burma and Liberia. And even in those countries, scientists usually use metric measure. When they don't - as the clowns at NASA found to their cost - they end up trashing the hugely expensive Mars Climate Orbiter.
gramsWHAT