Two products are possible in this exchange reaction: PbCrO4 and KNO3. Which precipitate(s)? O PbCrO4 Ο ΚNO3 neither both

Q: 5 Consider the following chemical equation: H₂A RbOH() Rb Ag+ H₂O A0.126 mol sample of impure…

A: We know that, At equivalence point the number of moles of H+ ions is equal to the number of moles of…

Q: A typical antacid tablet contains 0.50g of calcium carbonate. The chemical equation for the…

A:

Q: Barium (Ba) can be analyzed in solutions by forming BaSO4 (s) precipitate. Ba (2+) + SO4(2-) -->…

A: The amount of Ba2+ ions in the sample of barium compound is unknown and is to be calculated to…

Q: As (s) --> AsO43- (aq) (rxn 1)     3Ag+(aq) + AsO43- (aq) --> Ag3AsO4 (s) (rxn 2)   You find…

A: The reactions given are, 1) As (s) ------> AsO43- (aq) 2) 3 Ag+ (aq) + AsO43- (aq) -------->…

Q: If 20 mL of 0.5 M Pb(NO3)2 solution is added into 40 mL 0.5 M KI solution, how many grams of Pbl2…

A: A multiple choice question based on mole concept, which is to be accomplished.

Q: what is the reaction? + Br Br

A:

Q: What are the spectator ions of Al2(SO4)3 + NaOH?

A: Spectator ions are dissociated ions in aqueous solution that shows up in the complete ionic equation…

Q: 1. Fe 202 -> 1 Fe3O4 2. CaCO3 ->> | CaO + CO₂ 3. 1 NH4NO3- 1 N₂O + 2 H₂O 4. 1 Pb(NO3)2 + 2 HCl → 1…

A: Since you have asked multiple types questions, we will only first  three questions for you. If you…

Q: Mass of H2C2O4•2H2O = 1.3245 grams  Molar Mass of H2C2O4•2H2O = 126.07 Volume of H2C2O4•2H2O…

A:

Q: If 0.10 moles of each of the following chemicals are placed in water such that the final combination…

A: Answer: Molar concentration of ions is equal to the ratio of number of moles of ions and volume of…

Q: Which acid and which base (formulas) are reacted to form the following ionic compounds (salts) in…

A: In the chemical reaction between NaOH and H2CO3, NaHCO3 and water will be produced. The complete…

Q: Which one of the following compounds is soluble in water? O AgBr O Pb(OH)2 O Ag2SO4 O NICO3 O…

A: Any compound or molecules of a substance capable of dissolving in water are known as soluble in…

Q: For the reaction below: O Na OCH3

A: It is a type of reaction in organic chemistry in which a compound with an electrophilic double or…

Q: What other reactants are required for the following reaction to occur?

A: Alkene will undergo addition reaction with Cl2 to give vicinal dihalide. NaOEt will abstract the H+…

Q: Which of the following lead (II) compounds would yield the smallest number of lead (II) ions when…

A: Ksp for PbS 3.2 x 10-28 Ksp for PbSO4 = 1.8 * 10-8 Ksp for PbCrO4 = 1 * 10-16

Q: hat is the formula of the precipitate that forms when aqueous Fe(NO3)3 and aqueous NaCO3 are mixed?

A: Double displacement reaction-in reaction positive and negative ions of two ionic compounds displaces…

Q: 1. Fe/ HCI 2. NANO2HCT 0-SC NO

A: There are two steps in given reaction 1. Fe/ HCl reduce nitro group into NH2   2. NH2 on reaction…

Q: A solution of lead (II) nitrate reacts with a solution of sulfuric acid. What are the products of…

A: The double displacement reactions are the reactions, which involve exchange of ions between two…

Q: According to the solubility rules, which one of the following compounds is insoluble in water? O…

A: The solubility of an ionic compound in water depends on the nature of the ions present in the ionic…

Q: Soluble or Insoluble? Cs2CO3 (Hg2)Br2 Magnesium sulfate Pb(OH)2 Ammonium iodide Cu3(PO4)2

A: The question is based on the concept of solubility. compounds which dissociate completely in aqueous…

Q: have a 3ml Pb(NO3)2 solution that has 0.1 Molarity. I also have a 6ml K2CrO4 solution that is 0.1…

A:

Q: Given the above reaction what is the AHrxn for the following reaction? 4 Ti(s) + 6 I2(g) →4 Til3(s)…

A: Ho(Ti) = 0 kJ/molH0(I2) = 62.4 kJ/molH0(TiI3) = -322.168 kJ/mol

Q: Complete and balance the equations for each of the following reactions. All yield products.   (a)…

A:

Q: Which of the following metals could you add to a solution of cobalt(II) nitrate to produce elemental…

A: 1.To obtain pure Cobalt from Cobalt(III) nitrate, the reduction of  of Co takes place, and the…

Q: H)2 +2 HCIO3

A: Cu(OH)2 is base it's released 2OH- ion and HClO3 is an acid it's released H(+) ion so that water is…

Q: Identify each element(s) in the following reaction that is not balanced.  6 KOH (aq)  +  2 H3PO4…

A: in Balanced chemical equation  no of atoms of each species is equal on reactent and products side.

Q: You are preparing standard acid and base solutions for the laboratory, using potassium hydrogen…

A: When solutions are prepared for particular for titrations, it order to confirm the concentration of…

Q: 1. Consider the two-step process for the formation of tellurous acid described by the following…

A: Given two steps are : TeO2 + 2OH- ----------> TeO32- +  H2O  TeO32- + 2H+ (aq) -------> H2TeO3…

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.