Question

5. Why primary standard substances are used to make standard solutions?
Ans.​

Answer 1

Answer:

Primary standards are typically used in titration to determine an unknown concentration and in other analytical chemistry techniques. ... The reaction confirms that the solution is at a specific concentration. Primary standards are often used to make standard solutions, solutions with a precisely known concentration

Answer 2

Answer:

Primary standards are typically used in titration to determine an unknown concentration and in other analytical chemistry techniques. Titration is a process in which small amounts of a reagent are added to a solution until a chemical reaction occurs. The reaction confirms that the solution is at a specific concentration. Primary standards are often used to make standard solutions, solutions with a precisely known concentration