Mole., Chemistry

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What is mole?

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How to solve, The total number of valence electrons in 4.2 gm N-3 of ion i...

The total number of valence electrons in 4.2 gm N-3 of ion is ( NA is the Avogadro''s number): (1) 1.6NA

Crystallization, explain crystallization as a method of separating mixture

explain crystallization as a method of separating mixture

Terminologies in organic chemistry!, (a) Co-ordination compound A co-ordi...

(a) Co-ordination compound A co-ordination compound contains a central metal atom or cation which is surrounded by a suitable number of anions or neutral molecules and usually re

Solid state: silver density, Silver has a density of 10.5gcm -3 . The no. ...

Silver has a density of 10.5gcm -3 . The no. of silver atoms on a surface area of 10-12m 2 can be expressed in scientific notation aas y x 10x.The value of x is ..? Ans) d = m

What is atomic emission spectra, Q. What is Atomic emission spectra? A...

Q. What is Atomic emission spectra? Atomic emission spectra while atoms of an element in the gaseous phase are excited by an input of energy such as that from a high-voltage

Aromaticity, compare the acidity between pyrole and pyrimidine

compare the acidity between pyrole and pyrimidine

The wave number associated with this light, The frequency of a wave of ligh...

The frequency of a wave of light is 12x 10 14 s -1 .   The wave number associated with this light is: (1) 5x10 -7 m                        (2)  4x 10 -8 cm -1

Sets of quantum numbers is correct for an electron, Which of the following ...

Which of the following sets of quantum numbers is correct for an electron in 4f orbital: (1) n-=4, l=3. m+1, s= +1/2              (2) n-=4, l=4. m-4, s= -1/2

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