A method of exceptional scientific status which is sufficiently accurate to stand alone in the determination of a given property for the certification of a. reference material. . Such a method must have a firm theoretical foundation so that. systematic error.
How do you use definitive?
The definite article is used before singular and plural nouns when the noun is specific or particular. The signals that the noun is definite, that it refers to a particular member of a group. For example: “The dog that bit me ran away.” Here, we’re talking about a specific dog, the dog that bit me.
What is law of definite proportion in chemistry?
law of definite proportions, statement that every chemical compound contains fixed and constant proportions (by mass) of its constituent elements.
What is a definite composition?
law of definite composition in American English noun. Chemistry. the statement that in a pure compound the elements are always combined in fixed proportions by weight. Logic. the law that either a proposition or its denial must be true.
What is absolute method in analytical chemistry?
[′ab·sə‚lüt ′meth·əd] (analytical chemistry) A method of chemical analysis that bases characterization completely on standards defined in terms of physical properties.
What does definite mean in a sentence?
adjective. clearly defined or determined; not vague or general; fixed; precise; exact: a definite quantity; definite directions. having fixed limits; bounded with precision: a definite area. positive; certain; sure: It is definite that he will take the job.
What is definite and indefinite?
The definite article (the) is used before a noun to indicate that the identity of the noun is known to the reader. The indefinite article (a, an) is used before a noun that is general or when its identity is not known. There are certain situations in which a noun takes no article.
What are definite articles give two examples?
- “May I go to the college?”
- “I saw him in the school. The boy was weeping.”
- “The rose has beautiful smell.”
- She is the brilliant student.
- He is the first man to win Oscar award.
What is law of definite proportion explain with example?
The Law of Definite Proportions states that a chemical compound will always have the same proportions or amount of each element by weight, no matter what the amount is, or source. For instance, a 50-gram sample of carbon monoxide will have 21.5 g of carbon and 28.5 g of oxygen.
What is an example of law of definite proportions?
Common Examples of the Law of Definite Proportions. Water, written as the chemical compound H20, is made up of atoms of hydrogen and oxygen. If one oxygen atom is combined with two hydrogen atoms, water is created.
How do you find a definite proportion?
What does definite mean in science?
Definite. 1. Having certain or distinct; determinate in extent or greatness; limited; fixed; as, definite dimensions; a definite measure; a definite period or interval. Elements combine in definite proportions. ( Whewell)
Is Solution has a definite composition?
Mixtures have a definite composition by weight. All solutions are mixtures. Pure substances are heterogeneous. A pure substance is homogeneous but does not have a fixed composition.
Do compounds have definite composition?
The Law of Definite Composition: In different samples of any pure compound, elements combine always in the same, fixed, proportions by mass. compound has some definite mass composition].
What is absolute method and relative method?
Relative dating does not offer specific dates, it simply allows to determine if one artifact, fossil, or stratigraphic layer is older than another. Absolute dating methods provide more specific origin dates and time ranges, such as an age range in years.
What is absolute accuracy method?
Absolute Accuracy: Absolute accuracy is how close a measured value is to a know absolute true value. Usually provided in known and agreed-on units such as meters, cm, mm, inches, or feet. Repeatable: Can one operator with one instrument get the same measurement over and over.
Why is gravimetry analysis termed as absolute method?
It is an absolute method; it only involves direct measurement without any form of calibration. The determination could be carried out with relatively inexpensive apparatus; the most expensive items are platinum crucibles and muffle furnace.
What is a definitive answer?
Something definitive is complete and final. A definitive example is the perfect example. A definitive answer is usually a strong yes or no. A definitive biography contains everything we’ll ever need to know about someone.
What is another word for definite?
Some common synonyms of definite are explicit, express, and specific. While all these words mean “perfectly clear in meaning,” definite stresses precise, clear statement or arrangement that leaves no doubt or indecision.
What does definite form mean?
adj. 1 clearly defined; exact; explicit. 2 having precise limits or boundaries. 3 known for certain; sure.
What is definite and indefinite with examples?
We use the definite article ‘the’ to talk about something specific. Indefinite: “I’m going to eat an apple.” This could be any apple, we don’t know which one. Definite: “I’m going to eat the apple.” We do know which apple I’m going to eat.
What is a definite number?
DEFINITE NUMBER. An ascertained number; the term is usually applied in opposition to an indefinite number.
What is the difference between definite and indefinite integral?
Definite and Indefinite Integrals. The definite integral of f(x) is a NUMBER and represents the area under the curve f(x) from x=a to x=b. The indefinite integral of f(x) is a FUNCTION and answers the question, “What function when differentiated gives f(x)?”
Why is the called definite article?
The is called the definite article because it is used to refer to a particular person or thing.
What part of speech is indefinite?
Without limit; forever, or until further notice; not definite.