What is base units, Chemistry

Assignment Help:

Q. What is Base units?

There are seven base units given in SI. A base unit is a unit of calculate that is based on an object or event in the physical world. Lists of the seven SI base units their abbreviations and the quantities they are used to measure.

SI Base Units

 

Time

second (s)

Length

meter (m)

Mass

kilogram (kg)

Temperature

kelvin (K)

Amount of a substance

mole (mol)

Electric current

ampere (A)

Luminous intensity

candela (cd)

SI is based on a decimal system consequently are the prefixes in next table which are used to extend the range of SI units.

750_What is Base units.png

 


Related Discussions:- What is base units

Determine the ionization in solutions, Q. Determine the Ionization in Solut...

Q. Determine the Ionization in Solutions? Ans. Ionic compounds dissolve in water because the polar water molecule pulls apart the ions of the ionic compound. This process

Mathematical method of expressing the concentrations of solu, how many gram...

how many grams of salt must be added to 500 gram of water in preparation of 12% saline solution

Show the oxoacids of sulphur, Q. Show the Oxoacids of Sulphur? As you k...

Q. Show the Oxoacids of Sulphur? As you know, oxoacid is an acid in which the ionisable hydrogen atom is bonded, through an oxygen atom to the central nonmetal atom, e.g., E-OH

Stephen reaction - aldehydes and ketones, Stephen reaction - Aldehydes and ...

Stephen reaction - Aldehydes and Ketones Benzaldehyde is acquired by partial reduction of phenyl cyanide along with stannous chloride and passing dry HCl gas in ether solution

Which group of elements is called alkaline earth metals, 1st A group becaus...

1st A group because the oxides and hydrides are alkaline in nature.

Electronic configuration of ferric ion is, Electronic configuration of ferr...

Electronic configuration of ferric ion is: (1) [Ar] 3d 5                           (2) [Ar] 3d 7            (3) [Ar] 3d 3           (4) [Ar] 3d 8 Ans:  [Ar] 3d 5

Calor especifico, cual es la formula para el calor especifico

cual es la formula para el calor especifico

The expression for bohr''s radius of an atom is, The expression for Bohr's ...

The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2                         (2) r= n 2 h 2 / 4 Π me 2 z 2           (3) r=  n2h2/4 Π me 3

Determine the change in entropy, For a reversible process involving ideal g...

For a reversible process involving ideal gases in a closed system, show that  ΔS = C v ln(T2/T1) for a constant volume process ΔS = Cp ln(T2/T1) for a constant pressure proc

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd