Question

what is error?? in analytical chemestry

define it

Answer 1

Answer:

Explanation:

                           ERROR

Error is the difference between the actual value and calculated value of any physical quantity.

TYPES

3Types;

• Determinate error
• indeterminate error
• Gross error

DETERMINATE ERROR;

• have definite value and can be measured or counted
• have magnitude which can be determined
• can be avoided or  eliminated by proper precaoutions
• have source which can be located to make the result higher (+ve error) or (-ve error)

TYPES;

1. Operational error
2. Methodic error
3. Personal error ⇒⇒⇒⇒2 types
4. Instrumental error

INDETERMINATE ERROR

• also called random error
• Its sources are not actually known
• can;t be eliminated or minimized
• always exist in measurement

Sources

• electrical fluctuation
• Dust and humidity factor

statistics is only applied to estimate these types of errors

TYPES

1. Constant error
2. proportional error

GROSS ERROR

• very rare
• could'nt be minimized or avoided
• but by seriousness and care
• also called accidental error

                       .................              

Answer 2

Answer:

An error is an action which is inaccurate or incorrect. In some usages, an error is synonymous with a mistake. In statistics, "error" refers to the difference between the value which has been computed and the correct value. An error could result in failure or in a deviation from the intended performance or behaviour.