The key difference between reverse phase and normal phase HPLC is that the reverse phase HPLC uses a polar stationary phase and a less polar mobile phase whereas the normal phase HPLC uses a nonpolar stationary phase and a polar mobile phase. The normal phase HPLC is the oldest technique of HPLC that Tswett used […]

The key difference between pH and titratable acidity is that the pH measures the concentration of free protons in a solution whereas titratable acidity measures the sum of free protons and un-dissociated acids in a solution. The acidity of a solution measures the ability of that solution to neutralize a base. This is because acids […]

The key difference between accuracy and precision in chemistry is that accuracy reflects how close a measurement to an accepted value (or a known value) whereas precision reflects how reproducible the measurements are. Both the terms accuracy and precision gives the idea of how close a measurement is close to an actual value. But they […]

The key difference between calibration curve absorbance and concentration is that calibration curve is a graph of absorbance and concentration, absorbance is the amount of light absorbed by a sample whereas concentration is the amount of a substance distributed in a unit volume. Spectroscopy is an analytical technique which is useful in determining the concentration […]

The key difference between volumetric and gravimetric analysis is that the volumetric analysis measures the quantity of an analyte using volume whereas the gravimetric analysis measures the quantity of an analyte using weight. In an analysis, we measure the amount of an unknown compound with the use of a known amount of a known compound. […]

The key difference between gravimetric and volumetric feeder is that we measure the rate of a gravimetric feeder in the unit of volume per unit time whereas we measure the rate of a volumetric feeder in the unit of weight per unit time. Feeders are useful to handle bulk solids. There are two forms of […]

The key difference between primary and secondary standard solution is that primary standard solution has a high purity and less reactivity whereas secondary solution has a less purity and high reactivity. Standardization is the process of finding the exact concentration of a prepared solution using a standard solution as the reference. Standard solutions have accurately known […]

The key difference between dewpoint and wet bulb temperature is that dewpoint temperature is the temperature to which we should cool the air to saturate the air with water vapor whereas wet bulb temperature is the temperature that we get from a moistened thermometer bulb that is exposed to air flow. Dew point and wet […]

The key difference between natural and forced convection is that in natural convection, the motion of the fluid is influenced by natural means whereas, in forced convection, the motion of fluids is influenced by external means. The difference between natural and forced convection related to heat transfer is that there are no external factors affecting […]

The key difference between uniaxial and biaxial crystals is that uniaxial crystals have a single optic axis whereas biaxial crystals have two optic axes. The optic axis of a crystal is the direction that the light propagates through the crystal without facing double refraction. All the light waves that are parallel to this axis do […]