The energy of electron in hydrogen atom in its grounds state, The energy of...

The energy of electron in hydrogen atom in its grounds state is -13.6 eV. The energy of the level corresponding to the quantum number equal to 5 is: (1) -0.54 eV         (2)

Physical properties of salicylic acid, Physical properties of Salicylic aci...

Physical properties of Salicylic acid (i) Salicylic acid is a colourless needle shaped crystalline compound. (ii) Salicylic acid's m.p. is 156°C. (iii) Salicylic acid is

Glass electrode, why glass electrode is called indicator electrode

why glass electrode is called indicator electrode

Organometalic compound, application of organomethod

application of organomethod

Chemical bonding, H2,Li2,B2 each has bond order equal to 1 , the order o...

H2,Li2,B2 each has bond order equal to 1 , the order of stability is

Please help, How many grams are in 4.5 moles of carbon?

How many grams are in 4.5 moles of carbon?

Explain a first order reaction, A first order reaction takes 69.3 minutes f...

A first order reaction takes 69.3 minutes for 50% completion. Set up an equation for determining the time needed for 80% completion of this reaction.

Ionic bond,

Silver metal, what are the equations for Extraction of Ag from argentiferro...

what are the equations for Extraction of Ag from argentiferrous lead ?

THIRD LAW OF CHEMIICAL COMBINATION, COMPOUNDS A AND B CONTAIN COPPER AND SU...

COMPOUNDS A AND B CONTAIN COPPER AND SULPHUR.EACH CONTAINS 20% AND 33.33% EACH BY MASS OF SULPHUR RESPECTIVELY.FIND THE RATIO OF THE ELEMENTS USING THE THIRD LAW OF CHEMICAL COMBIN