Quick Answer: Why Is It Important To Standardize Reagents?

What is the importance of standardization?

Fundamentally, standardization means that your employees have an established, time-tested process to use.

When done well, standardization can decrease ambiguity and guesswork, guarantee quality, boost productivity, and increase employee morale..

Why do we need standards in chemistry?

Standards are materials containing a precisely known concentration of a substance for use in quantitative analysis. A standard provides a reference that can be used to determine unknown concentrations or to calibrate analytical instruments.

What is standardization of NaOH and why is it important?

Solid NaOH is highly hygroscopic (it absorbs water from the air) and thus it cannot be accurately weighed. … A KHP sample of known mass (and, therefore, known moles) can be titrated with the NaOH solution to determine very precisely the concentration of the NaOH. This procedure is called standardizing the NaOH solution.

What is the normal solution?

A solution made by dissolving 1 g-equivalent weight of a substance in sufficient distilled water to make 1 L of solution.

What does it mean to standardize the sodium hydroxide solution?

Before we begin titrating that wine sample we have one more important step, standardization of NaOH solution. Standardization simply is a way of checking our work, and determining the exact concentration of our NaOH (or other) reagent.

Why do we use Khp instead of HCl to standardize the NaOH solution?

Most likely because the HCl you are using is a poor primary standard. KHP has the benefit of being a stable solid with well know properties, which means if you have a precise/accurate balance you can get very good numbers on the concentration of your NaOH solution.

What is the standardization process?

Standardization is the process of creating protocols to guide the creation of a good or service based on the consensus of all the relevant parties in the industry. … Some of the parties involved in the standardization processes include users, interest groups, governments, corporations.

What are the functions of standard solutions?

A known mass of solute is dissolved to make a specific volume. It is prepared using a standard substance, such as a primary standard. Standard solutions are used to determine the concentrations of other substances, such as solutions in titration.

What is the aim of standardization in chemistry?

Standardization is the process of determining the exact concentration (molarity) of a solution. Titration is one type of analytical procedure often used in standardization. In a titration, an exact volume of one substance is reacted with a known amount of another substance.

What is the importance of titration?

Titration is an analytical technique that is widely used in the food industry. It allows food manufacturers to determine the quantity of a reactant in a sample. For example, it can be used to discover the amount of salt or sugar in a product or the concentration of vitamin C or E, which has an effect on product colour.

What makes a good primary standard?

High purity. Stability (low reactivity) Low hygroscopicity (to minimize weight changes due to humidity) High equivalent weight (to minimize weighing errors)

Why do we standardize sodium thiosulphate solution?

Sodium thiosulphate solution is standardized against potassium dichromate in presence of hydrochloric acid and potassium iodide. … The iodine formed in the reaction oxidizes sodium thiosulphate giving sodium tetrathionate ion and the end point is detected by starch solution.