Epsom salt (MgSO4.7H₂O) changes to the monohydrate form at 150°C. Write equation for the change. 10410 an

Q: A coffee cup calorimeter was used to measure the heat of solution, the change in enthalpy that…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Calculate the heat of hydration for silver nitrate. ΑΣφ ? AHnydration k II

A: Total Energy needed for completion of the reaction is known as enthalpy of the reaction

Q: Your lab partner accidentally mixed some sodium chloride with your sample of Epsom salts…

A: According to question, 100 gm of mixture containing Sodium chloride and Epsom salts is heated after…

Q: Write a balanced chemical equation based on the following description: butanoic acid, C3H,COOH(I)…

A: Here, we shall answer only the first question which allows us to write a Balanced Chemical Equation…

Q: Given the following reaction: 4 Fe(s) + 3 O2 (g) → 2 Fe2O3 (s) ΔH = -1648 kJ 52.0 g of Fe (MM =…

A: 52.0 g of Fe is reacted.Thus, moles of Fe reacted

Q: Given the following reaction: 4 Fe(s) + 3 O2 (g)  →  2 Fe2O3 (s)  ΔH = -1648 kJ 52.0 g of Fe (MM =…

A: The balanced reaction taking place is given as, => 4 Fe(s) + 3 O2 (g)  →  2 Fe2O3 (s)…

Q: 4. True or False (1) Chlorine demand is the difference between total chlorine and free chlorine (2)…

A: Note: Since you have posted multiple questions, we will provide the solution only to the first five…

Q: (b) What is the value of Keq for the reaction 2 NO(g) + Cl2(g)  2 NOCl(g)? Keq =  . (c) What is…

A: Keq is the ratio of  product of concentration of products raised to their stoichiometric coefficient…

Q: (a) Convert 41.3 L atm to kcal. (Use dimensional analysis)  (b) Convert –279.67°F to K. (C)The…

A: Bond enthalpy: It can be defined by saying that the amount of energy required to break the bond for…

Q: Calculate the enthalpy of synthesizing hydrogen iodide to from hydrogen and iodine. 12(s) + H2(g) →…

A: Enthalpy of reaction is  calculated as difference in enthalpy  of products and enthalpy of…

Q: Public water systems often add fluoride to drinking water because, in the proper amounts, fluoride…

A: a) Given in the question, Annual average of maximum daily air temperature = 17.8 - 21.4 For this…

Q: Ammonification is the process by which ammonia is released during the decomposition of…

A: Ammonification is the process by which :

Q: One of the best-selling light, or low-calorie, beers is 4.2%alcohol by volume and a 12-oz serving…

A: (a) Balanced chemical reaction of ethanol with oxygen to form carbon dioxide and water is as shown…

Q: 2.503 g of ammonium chloride NH4CI are added to a calorimeter cup containing 25.30 g of water at…

A: ∆Hdissolution = -qsolution Heat loss by the solution,  q = m. c . ∆T m is the mass of water c is…

Q: type of chemical reaction

A:

Q: Kp is related to Kc by the equation K, = Kc (RT)An, What is the value of An for the reaction below?…

A: given data  Kp = Kc (RT)∆n N2 (g) + 3H2 (g) →← 2NH3 (g) ∆n = ?

Q: The salt potassium perchlorate is soluble in water. When 2.84 g of KClO4 is dissolved in 106.00 g of…

A: Mass of KClO4 = 2.84 g Mass of H2O = 106 g Total mass of mixture = (106 + 2.84) g Temperature…

Q: water. When 8.46 g of CsBr is dissolved in 117.00 g of water, the temperature of the solution…

A: We have to find enthalpy of dissolution of CsBr (in kJ/mol).  Given m = 117g  C = 4.184 J/g °C   ∆T…

Q: Refer to the equation below to answer the questions that follow. -Hvap In P1 R T2 T1 1* atm R=…

A:

Q: A coffee cup calorimeter was used to measure the heat of solution, the change in enthalpy that…

A: From given datas  We are summing up all values and determining  qcontents, qcal, qsoln, ∆Hrxn are…

Q: What mass of carbon dioxide is formed from burning one gallon of octane, C8H18? Octane has a density…

A: Answer :-  a) Mass of carbon dioxide is formed from burning one gallon of octane, C8H18 = 8216.4 g…

Q: 2 K(s) + 2 H2O(l) → 2 KOH(aq) + H2(g) AH-393 kJ/molræn When 3.9 g of K(s) is added to 200. mL of…

A: To determine the pH of the water after the reaction is complete, we need to consider the products of…

Q: Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid…

A:

Q: Balanced chemical equation for conversion of Al(s) to KAl(SO4)2·12H2O(s) in aqueous solution

A: The salt to be formed is KAl(SO4)2·12H2O. Since in the salt we have Al in 3+ oxidation state and…

Q: Write the expression for Keq for the reaction: 2 NO(g) + Cl₂(g) 2 NOCI(g)

A: Keq is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

Q: Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid…

A: Stoichiometry is mainly based on the calculation of moles and volumes. These two values are used to…

Q: Consider the reaction at 500 °C. N,(g) +3 H, (g) = 2 NH, (g) K. = = 0.061 If analysis shows that the…

A: Given information,    [N2] = 0.765 mol/L    [H2] = 3.70 mol/L    [NH3] = 4.82 mol/L    Kc = 0.061

Q: An increase in water temperature is observed when 1.97 g of NaOH is added. The enthalpy change for…

A: Enthalpy of solution is the amount of heat change when 1 mol of substance is dissolved in water.…

Q: Calculate the amount of salt in a commercial cold-pack containing ammonium nitrate (ΔHsol = + 25.7…

A: Here we are required to find the mass of ammonium nitrate in cold pack which has enthalpy of…

Q: Suppose you performed a similar experiment using an unknown sample of carbonate. The pressure and…

A: Given that: Volume of 1.0 M HCl solution = 22.0 ml Temperature, T = 21.5oC = 294.65 K Final pressure…

Q: The reaction A(aq) + B(aq)  C(aq) + D(aq) has a ΔHrxn = -85 kJ/mol.   This reaction is…

A:

Q: At 475 oC, Keq = 0.230 for the reaction: 1/3 NO2(g) + 1/3 N2O(g) (equilibrium arrows)  NO(g)…

A: Given that : At 475 oC, Keq = 0.230 for the reaction : 13NO2(g)  +  13N2O(g)  →  NO(g)

Q: 128 CHAPTER 5 3. A chart of vapor pressure information at different temperatures for various liquids…

A: The answer are as follows:

Q: If cobalt(II) sulfate is heated too strongly, the following reaction will occur CoSO4(s) à CoO(s) +…

A: If cobalt (II) sulfate is heated too strongly, the following reaction will occur: CoSO4(s) →…

Q: The solubility of MnSO4•H2O in water is 70.0 g per 1000 g of solution, at 25oC. The density of a…

A: Mole fraction is determined as the ratio of number of moles of solute and the total number of moles…

Q: Given the following reactions:   Fe(s) + Br2(g) \rightarrow→ FeBr2(s) 3 FeBr2(s)+ Br2(g)…

A: The balance chemical reactions :  Fe(s) + Br2(g) ----> FeBr2(s)  3FeBr2(s) + Br2(g)  --->…

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.