Chemspec Chemicals Quality Assurance Trainee Interview Questions, Process, and Tips

Normality refers to the state of being normal or typical. In statistics, it refers to a bell-shaped curve distribution.

• Normality in statistics refers to a bell-shaped curve distribution where the majority of data points cluster around the mean.

• It is used to determine if a data set is normally distributed or not.

• Example: Heights of adult males in a population often follow a normal distribution.

Molarity is a measure of the concentration of a solute in a solution, expressed as the number of moles of solute per liter of solution.

• Molarity is calculated by dividing the number of moles of solute by the volume of the solution in liters.

• For example, a solution containing 0.5 moles of NaCl in 1 liter of water has a molarity of 0.5 M.

• Molarity is commonly used in chemistry to quantify the amount of a substance in a giv

HPLC stands for High Performance Liquid Chromatography, a technique used to separate, identify, and quantify components in a mixture.

• HPLC involves passing a liquid sample through a column filled with a stationary phase, where different components interact differently and are separated based on their properties.

• It is commonly used in pharmaceutical, environmental, and food industries for quality control and research pur...read more

Gas chromatography is a technique used to separate and analyze compounds in a mixture based on their different volatilities.

• Gas chromatography involves a stationary phase (usually a coated capillary column) and a mobile phase (inert gas like helium).

• The sample is injected into the column and carried through by the mobile phase. Compounds separate based on their interactions with the stationary phase.

• The separated compo...read more

Types of titration include acid-base titration, redox titration, complexometric titration, and precipitation titration.

• Acid-base titration involves the neutralization of an acid with a base or vice versa.

• Redox titration involves a redox reaction between the analyte and titrant.

• Complexometric titration involves the formation of a complex between the analyte and titrant.

• Precipitation titration involves the formation of a