Equilibrium questions
1777 published questions with worked solutions.
- What would be the pH of a solution obtained by mixing 5 g of acetic acid and 7.5 g of sodium acetate and making the volume equal...
- At a certain temperature, only 50% HI is dissociated into H_2 and I_2 at equilibrium. The equilibrium constant is :
- Consider the following equilibrium AgCl + 2NH_3 [Ag(NH_3)_2 ]^+ + Cl^-. White precipitate of AgCl appears on adding which of the...
- Assuming that the degree of hydrolysis is small, the pH of 0.1M solution of sodium acetate (K_a = 1.0 10^ -5 ) will be:
- In some solutions, the concentration of H_3O^+ remains constant even when small amounts of strong acid or strong base are added...
- What happens when an inert gas is added to an equilibrium keeping volume unchanged?
- For the decomposition of the compound, represented as NH_2COONH_4(s) 2NH_3(g) + CO_2(g) the K_p = 2.9 10^ -5 atm^3. If the...
- Zirconium phosphate [Zr_3(PO_4)_4 ] dissociates into three zirconium cations of charge +4 and four phosphate anions of charge −3....
- In a qualitative analysis, Bi^ 3+ is detected by appearance of precipitate of BiO(OH)(s). Calculate pH when the following...
- At 298 K, a certain buffer solution contains equal concentrations of X^- and HX, K_b for X^- is 10^ -10 . What is the pH of this...
- Phenolphthalein is used as an indicator for the titration of sodium hydroxide solution against a standard solution of oxalic...
- Given below are certain reactions. Identify the reaction for which K_P K_C.
- The correct order of solubility of the given salts in water at 298 K is Salt, K_ sp at 298 K: AgBr, 5.0 10^ -13 Zn(OH)_2, 1.0 10^...
- The standard Gibbs energy change at 300 K for the reaction 2A B + C is 2494.2 J. At a given time, the composition of the reaction...
- Gaseous N _2 O _4 dissociates into gaseous NO _2 according to the reaction N _2 O _4(g) 2 NO _2(g). At 300 K and 1 atm pressure,...
- The increase of pressure on ice water system at constant temperature will lead to:
- For the reaction, A (g) + B (g) C (g) + D (g), ^ and ^ are, respectively, -29.8 kJ mol^ -1 and -0.100 kJ K^ -1 mol^ -1 at 298 K....
- A solid XY kept in an evacuated sealed container undergoes decomposition to form a mixture of gases X and Y at temperature T. The...
- An aqueous solution of a salt MX _2 at certain temperature has a Van't Hoff factor of 2. What is the degree of dissociation for...
- Addition of sodium hydroxide solution to a weak acid (HA) results in a buffer of pH 6. If ionization constant of HA is 10^ -5 ,...
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Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration