The Ka for HF is 7.0 x 10-4 Kb for the fluoride ion is

Q: 2) A solution is made by dissolving 0.050 mol HCIO; in 1.00 L water at 25 °C. What is true about the…

A: The concentration of any solution is defined as the number of moles of solute dissolved in 1 L of…

Q: Solid molybdenum(VI) oxide reacts with gaseous xenon difluoride to form liquid molybdenum(VI)…

A: For a general reaction aA (g) + bB (g) →cC (g) + dD (g) The reaction quotient (Q) measures the…

Q: Explain why ammonium carbonate rather than sodium carbonate is used in the precipitation of Group IV…

A: Cations of group IV [ calcium (II) Ca2+, strontium (II) Sr2+ and barium (II) Ba2+ ] precipitate in…

Q: Write the chemical equation for the solution of calcium hydroxide in water.

A:

Q: H2 Pd/C 1. KMNO4, NaOH 2. Hо PBr3 Br HO,

A: Given : We have to write the reagents for the following reaction.

Q: Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) from the…

A: To calculate the moles of alum formed from the given number of moles of each reagent, we would use…

Q: HBR, O2, CH3OH all have comparable molecular masses. List the dominant type of IMF for the pure…

A: Intermolecular forces: There are forces that arise between the two atoms of a compound. There are…

Q: Calculate the molar solubility of PbS in a solution in which H₂O is held constant at: ( Kp (PbS) =…

A:

Q: Sketch and label 6-8 H2O molecules interacting in the liquid phase.

A:

Q: The goal of the first part of the experiment is to determine the value of n in the formula for…

A: Given :  Mass of sodium percarbonate = 25 mg  Moles of H2O2 = 0.229 millimoles

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Answer :--Here, we have to determine the charges of the ions are :-CN- :- The cyanide ion carries a…

Q: Write the formula of the salt formed in the reaction of nickel(II) oxide with nitric acid.

A:

Q: The first two steps in the industrial synthesis of nitric acid produce nitrogen dioxide from…

A: Equilibrium is defined as the state at which the rate of forward reaction becomes equal to the rate…

Q: Sodium thiosulfate pentahydrate is used in iodine-clock reactions and iodometric titration…

A: Sodium thiosulphate pentahydrate  Is the compound having sodium with thiosulphate group hand is…

Q: Write a balanced chemical equation for the acid-base reaction of oxalic acid, H2C2O4, with sodium…

A:

Q: Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime…

A: A balanced chemical equation states that the number of elements in the reactant side is equal to the…

Q: Which of the following is the expression for the solubility product of Ba3(AsO4)2? Select one: O a.…

A: First we have to know about Solubility and Solubilty product.   Solubility : It is defined as a…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.