Equilibrium questions
1777 published questions with worked solutions.
- The [ H ^+] ion concentration in 0.001 M acetic acid is 1.34 10^ -4 g-ion L ^ -1 . If 0.164 g of CH _3 COONa is added to a litre...
- The Ksp of PbCO₃ and MgCO₃ are 1.5×10⁻¹⁵ and 1×10⁻¹⁵ respectively at 298 K. The concentration of Pb²⁺ ions in a saturated...
- The following reactions are known to occur in the body: CO₂+H₂O⇌H₂CO₃⇌H⁺+HCO₃⁻. If CO₂ escapes from the system, then:
- According to the Arrhenius concept, the strength of an acid depends on:
- If pKb for CN⁻ at 25°C is 4.7, the pH of 0.5 M aqueous NaCN solution is:
- If the solubility product of lead iodide (PbI₂) is 3.2×10⁻⁸, its solubility will be:
- Which can act as buffer?
- The concept that an acid is a proton donor and a base is a proton acceptor was introduced by:
- Which one is more acidic in aqueous solution?
- The two Bronsted bases in the reaction are: HC₂O₄⁻ + PO₄³⁻ → HPO₄²⁻ + C₂O₄²⁻
- In which of the following solutions the solubility of AgCl will be maximum?
- For a given solution pH=6.9 at 60°C, where Kw=10⁻¹². The solution is:
- The correct relationship between the pH of isomolar solutions of sodium oxide (pH₁), sodium sulphide (pH₂), sodium selenide (pH₃)...
- If pH of a saturated solution of Ba(OH)₂ is 12, the value of its Ksp is:
- A solution of pH 9.0 is one thousand times as basic as a solution of pH:
- The pH of 1.0 M aqueous solution of a weak acid HA is 6.0. Its dissociation constant is:
- The pH of a solution is 5.0. To this solution sufficient acid is added to decrease the pH to 2.0. The increase in hydrogen ion...
- At 25°C, Kb for a base BOH is 1.0×10⁻¹². The [OH⁻] in 0.01 M aqueous solution of the base is:
- 50 mL of 2 N acetic acid mixed with 10 mL of 1N sodium acetate solution will have an approximate pH of (Ka=10⁻⁵):
- The hydrogen ion concentration in mol/litre of a solution of pH=0 is:
Other chapters
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