CHEMISTRY TEXTBOOK

iv. The enthalpy of formation for all elements in their standard states is a. unity b. zero c. less than zero d. different eleme ...

vii. Derive the expression for PV work viii. What are intensive properties? Explain why density is intensive property. ix. How m ...

xv. When 6.0 g of O 2 reacts with CIF as per 2Cl F(g) + O 2 (g) Cl 2 O(g) + OF 2 (g) The enthalpy change is 38.55 kJ. What is st ...

makes possible the manufacture of essential chemicals. You have learnt preparation of NaOH, widely used in the manufacture of so ...

Try this... Arrange a simple set up as shown in the diagram above. The lamp will glow when circuit is complete. Prepare 5 % (ma ...

electrical resistance is ohm denoted by the symbol Ω (omega). Thus, Ω = VA-1. The electrical conductance, G, of a solution is re ...

Problem 5.1 : The molar conductivity of 0.05 M BaCl 2 solution at 25^0 C is 223 Ω-1 cm^2 mol-1. What is its conductivity? Soluti ...

5.3.6 Variation of molar conductivity with concentration : The variation of molar conductivity with concentration in case of str ...

Problem 5.2 : Calculate the molar conductivity of AgI at zero concentration if the molar conductivities of NaI, AgNO 3 and NaNO ...

Try this... Obtain the expression for dissociation constant in terms of ∧c and ∧ 0 using Ostwald's dilution law. 5.3.9 Measureme ...

Problem 5.5 : A conductivity cell containing 0.01M KCl gives at 25^0 C the resistance of 604 ohms. The same cell containing 0.00 ...

5.5 Electrolytic cell Electrolytic cell consists of a container in which electrolyte is placed. Two electrodes are immersed in t ...

Net cell reaction The net cell reaction is the sum of two electrode reactions. 2 Cl (l) Cl 2 (g) + 2e (oxidation half reaction) ...

Overall cell reaction It is the sum of electrode reactions. 2 Cl (aq) Cl 2 (g) + 2e (oxidation at anode) 2 H 2 O (l) + 2e H 2 (g ...

b. Suppose two cells containing different electrolytes are connected in series. The same quantity of electricity is passed throu ...

Problem 5.8 : How many moles of electrons are required for reduction of 3 moles of Zn^2 ⊕ to Zn? How many Faradays of electricit ...

Salt bridge is prepared by filling a U tube with hot saturated solution of the salt and agar agar solution allowing it to cool. ...

As mentioned in section 5.4.2, oxidation half reaction occurs at anode and reduction half reaction at cathode. It, therefore, fo ...

The standard conditions chosen are 1 M concentration of solution, 1 atm pressure for gases, solids and liquids in pure form and ...

if [A] = [B] = [C] = [D] = 1M, Ecell = E^0 cell If a gaseous substance is present in the cell reaction its concentration term is ...