COLORIMETRY
This instrument measures the intensity of light transmitted through a colored solution
What is a colorimeter?
This technique is based on emission of light from excited metal atoms
What is flame photometry
This is defined as the reciprocal of resistance
What is conductance
This equation relates electrode potential to concentration
What is Nernst equation
This electrode is commonly used to measure pH
What is a glass electrode?
This law states that absorbance is directly proportional to concentration
What is Beer’s law?
In flame photometry, electrons return to this state after excitation
What is the ground state
The SI unit of conductance is this
What is Siemens
This is measured during potentiometric titration instead of color change
What is emf
The potential developed across the membrane depends on this ion
What is hydrogen ion (H⁺)
This law states that absorbance is directly proportional to path length
What is Lambert’s law?
This device converts liquid sample into a fine mist before entering the flame
What is nebulizer (atomizer)
This term refers to conductance of a solution containing one mole of electrolyte
What is molar conductivity?
This electrode maintains constant potential in a cell
What is a reference electrode (e.g., calomel electrode)?
This equation explains linear relation between potential and pH
What is the Nernst equation?
The ratio of transmitted light to incident light is called this
What is transmittance?
The intensity of emitted light is proportional to this
What is concentration of metal ions?
Conductivity depends on this factor related to ions’ movement in solution
What is ion size and solvation?
This point shows a sudden change in potential during titration
What is equivalence point
This internal solution is commonly used inside the glass electrode
What is 0.1 M HCl?
This component converts light into an electrical signal in a colorimeter
What is a photodetector?
This component selects wavelength specific to the analyte
What is a filter?
This type of titration uses conductance to determine the endpoint
What is conductometric titration?
This electrode responds to concentration changes of analyte
What is an indicator electrode?
This type of electrode combines reference and glass electrode in one body
What is a combined electrode?