Chemistry
Work through advanced chemistry questions focusing on electrochemistry and properties of solutions. Key themes include electrolytic conductivity, colloidal solutions, and solubility products. These concepts are frequently tested in JEE advanced, NEET, and university level chemistry competitive examinations.
An experiment showed that a lead chloride solution is formed when 6.21 g of lead combines with 4.26 g of chlorine. What is the empirical formula of this chloride?
Common salt obtained from Clifton beach contained $60.75\%$ chlorine while $6.40$ g of a sample of common salt from Khewra mine contained $3.888$ g of chlorine. State the law illustrated by these chemical combinations.
Potassium combines with two isotopes of chlorine $(^{35} Cl\,\, and\,\, ^{37}Cl)$ respectively to form two samples of $KCl$ Their formation follows the law of:
The % loss in mass after heating a pure sample of potassium chlorate (Mol. mass = 122.5) will be:
An aqueous solution of volume 500 ml, when the reaction : $ 2Ag^+(aq) +Cu(s) \leftrightharpoons Cu^{2+}(aq) +2Ag(s) $ reached equilibrium, the concentration of $ Cu^{2+} $ ions was xM. to this solution, 500 ml of water is added.at new equilibrium , the concentration of $ Cu^{2+} $ ions would be
$NaCl$ is doped with $2\times { 10 }^{ -3 }$ mole % $Sr{Cl} _{2}$, the concentration of cation vacancies is
A big irregular shaped vessel contained water, conductivity of which was $ 2.56 \times 10^{-3}\, S^{-1} \, m^{-1}.$ 585 g of NaCI was then added to the water and conductivity after the addition of Nacl, was found to be $ 3.06 \times 10^{-3}\,S^{-1}\, m^{-1}. $ The molar conductivity of Nacl at this concentration is $ 1.5 \times 10^{-2}\, S^{-1}\, mol^{-1}.$The capacity of vessel if it is fulfilled with water, is
The electrolysis of which electrolyte gives the same products in the fused state as well as in the aqueous solution state?
The product of electrolysis of concentrate solution of common salt is :
$ A \,Tl^{+} |Tl$ couple was prepared by saturating $ 0.10 M-KBr $ with TlBr and allowing $ Tl^{+}$ ions form the insoluble bromide to equilibrate. This couple was observed to have a potential $ -0.444 V $ with respect to $ PB^{2+} | Pb $ couple in which $ Pb^{2+}$ was 0.10 M. What is the $K _{sp} $ of $ TlBr.$ [Given :$ E _{Pb^{2+}|Pb}^{0} = -0.126 V, E _{Tl^{+}|Tl}^{0} = -0.336 V,$
$ log 2.5 = 0.4, 2.303 RT/F = 0.06]$
Which of the following methods can be used to separate hydrogen and oxygen in water?
The volume of gases evolved at STP by passing 0.1 ampere of current 49 65 seconds to 1 aqua solution of potassium?
Charge required for liberating $710 g$ of $Cl _{2}(g)$ by electrolyzing a concentrated solution of $NaCl$ will be:
Brine solution on electrolysis will not give__________.