How much work (in J) was done by the expansion? Express the work to three significant figures and include the appropriate units. μA Value tv/ MacBook Pro Units =www

Q: A student dissolves 12.3 g of ammonium chloride (NH4C1) in 200. g of water in a well-insulated open…

A: Given, The mass of the NH4Cl = 12.3  g Mass of the water = 200 g The molar mass of the NH4Cl = 53.5…

Q: CHEMWORK The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion…

A:

Q: Make the following products using 6 c ketones/aldehydes. a. H HO b.

A: The question is based on the concept of organic synthesis.  we need to synthesize the product using…

Q: 8. Given that Ksp for Agl(s) = 8.3 × 10-17 and Kf for [Ag(CN)₂] = 1.0 × 10²¹ at 25°C, what is the AG…

A:

Q: Using the Henderson-hasselbalch equation, calculate the volume of 0.2 M acetic acid and 0.2 M Sodium…

A: Given that: pH = 4.5 pKa = 4.74 Concentration of CH3COOH = 0.2 M Concentration of CH3COO- = 0.2 M…

Q: The effective pH range for an acid-basic indicates is: A. The p-function of the dissociation…

A: The question is based on the concept of pH of the solution.   it is defined as a negative logarithm…

Q: What would be the rate order for the following reaction: 2H₂ + O2 --> 2H₂O A B с D zero order first…

A: Order of a reaction is an experimental quantity. It can't be determined from the given chemical…

Q: Suppose 3.17 g of lead(II) acetate is dissolved in 50. ml. of a 0.60 Maqueous solution of ammonium…

A: Mass of lead (II) acetate = 3.17 g Volume of ammonium sulfate = 50 mL Molarity of ammonium sulfate =…

Q: When 1 mole of N₂ (g) reacts with H₂(g) to form NH3 (g) according to the following equation, 92.2 kJ…

A: Answer :  Given that, the reaction is  N2(g) + H2(g) → NH3(g) Mole of N2 = 1 mol. Energy evolved =…

Q: If the following data was produced, what order would you predict for the reaction? [A] In[A] 0.12…

A:

Q: Use the following equilibrium. H2(g) + CO2(g)  H2O(g) + CO(g)    K = 16.0 The initial partial…

A: H2(g) + CO2(g) ⇌ H2O(g) + CO(g)    Equilibrium constant (K) = 16.0 Initially Partial pressure of H2…

Q: Provide the correct IUPAC name for the compound shown here. Question 16 of 20 OH CH₂-CH-CH₂-CH₂-CH₂…

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

Q: Calculate q, w, Delta U and Delta H for 2.00 g of He(g) with Cv,m= 3/2R if: (a) expands reversibly…

A: This problem is based on Thermodynamics. Here basically First law of Thermodynamics will be used to…

Q: Suppose you measure out 1.080 moles of sodium chloride on the balance. If the weigh boat containing…

A: A numerical problem based on mole concept. No.of moles of NaCl is prescribed based on which the mass…

Q: 3) A buffer was made using 0.10 moles of A- and 0.010 moles of HA, to form 1.00 L of solution. If…

A: Buffer solution are those which resist the sudden pH change.  Buffer solution are two types acidic…

Q: Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the…

A: We know phenols are weak acids so when treated with the base we get salt plus water as the products.…

Q: A solution consists of 35.00 g of Cuso, dissolved in 250.0 mL of water. The molar mass of Cu is…

A: Molarity (M) is defined as the number of moles of solute per liter of solution. molarity = moles of…

Q: Using only the periodic table arrange the following elements in order of increasing ionization…

A: Ionisation energy is the energy requires on removal of first electron from an isolated gaseous atom.…

Q: 88. Multiple choice: Predict the products for the following situation. Na(s) KNO3(aq) A. Na+ (aq),…

A: There are the reaction of water molecule with sodium metal

Q: 9) Within a balloon, there are three types of gasses. You have 12.7 grams of gas #1 (N₂ gas), 9.7…

A:

Q: Consider the following reversible reaction: H2(g) + I2(g) ⇌ 2HI(g) The rate law for the forward…

A: reversible reaction: H2(g) + I2(g) ⇌ 2HI(g) Rate = k[H2][I2] The initial concentrations of H2 and I2…

Q: Calculate the molar mass of formaldehyde CH2O and C6H12O6.

A: Since, Molar mass of the compound is the sum of molar mass of each atom present in the molecule.…

Q: Identify the reagent(s) you could use to accomplish the following transformation. Select all that…

A: This question belongs to basic organic reaction.

Q: What is the diagram of the born haber cycle of cesium oxide?

A: The Born-Haber cycle is a theoretical model that helps explain the formation of ionic compounds,…

Q: Trial 1 2 3 2Li(s) + O2(g) [Li] (M) 1.50 3.00 3.00 What is the overall order for the reaction above?…

A: We have to find out the overall order for given reaction.

Q: At 30 °C, the following concentrations were found for the gases in an equilibrium mixture for the…

A:

Q: The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion pounds per…

A: A limiting reagent is the species that is used up first in the chemical reaction. It decides the…

Q: Consider the formaldehyde molecule (CH₂O) in figure. The partial charges are indicated in red (e is…

A: In the given problem we are required to calculate the electric dipole moment vector μ in terms of…

Q: Calculate the pH of each of the following solutions. (a) 0.109 M HONH, (Kb = 1.1 × 10-8) 4.0 9.34 x…

A: The concentration of HONH2 = 0.109 M The concentration of HONH3+ = 0.109 M

Q: [Review Topics] Use the References to access important values if needed for this question. For the…

A: To solve this problem we have to use the stoichiometry of the balanced chemical equation.

Q: Fora reaction 2A --> B, plot the data. What is the order of the reaction with respect to A? A) Zero…

A: The order of reaction can be defined as the power dependence of rate on the concentration of all…

Q: A monatomic ion with a charge of -2 has an electronic configuration of 1s²2s²2p 3s²3pº. This ion is…

A: Atom consist of subatomic particles called electrons, protons and neutrons. In an atom, there is…

Q: A reaction at -13.0 °C evolves 591. mmol of dinitrogen monoxide gas. Calculate the volume of…

A: For, dinitrogen monoxide gas, Pressure (P) = 1 atm moles (n) = 591 mmol = 0.591 mol Temperature (T)…

Q: .Write reactions for the standard enthalpy of formation of the following compounds from their…

A: The standard enthalpy of formation is the enthalpy change that occurs when one mole of a compound is…

Q: Choose the best option for the precursor to 3-chlorobenzyl alcohol. HO ई-४ ठू-छैन H CI CI HO BrMg

A: precursor is a compound that participates in a chemical reaction that produces another compound.

Q: An equilibrium mixture is 0.146 M NOBr, 0.363 M NO, and 0.321 M Br2. (a) What is the value of Kc…

A: Given , Equilibrium concentration : NOBr = 0.146 MNO     = 0.363 MBr2     = 0.321 M

Q: What is the expected product of the following reaction sequence? O (A) A 00 O OH SOCI₂ py (B) NH₂…

A: The concept used in this question is taken from general Organic Chemistry.  The correct answer of…

Q: Write the complete electron configuration for the common monatomic ion formed by the element…

A: Since, Electronic configuration represent the electron present in orbital in which way. Arrangement…

Q: stion 14 A buffer is prepared to achieve the target pH = 7.20. The ratio of the conjugate base to…

A: Given, conjugate base is denoted as B conjugate acid is denoted as A The ratio of conjugate base to…

Q: Find the number of moles and millimoles of benzoic acid (M 5 122.1 g/mol) that are contained in 2.00…

A: Mass of pure acid( benzoic acid) = 2.00g  Molar mass of benzoic acid = 122.1g/mol

Q: Which of the following is a standard state? O for a gas, it is 750 Hg for a liquid, it is 25°C for a…

A: Which of the following is a standard state?

Q: Identify the reagents that can be used to accomplish the following transformation 08 DY The…

A:

Q: What are the factors that affect buffer capacity? Explain in 2-3 sentences.

A: Buffer Solution is a water solvent which consists of a mixture containing a weak acid and the…

Q: 4.00 mol CO2 is placed in a 6.00 L container at a temperature where 12.3% of it decomposes. What is…

A: Number of moles of CO2= 4.00 Mol Volume of CO2 = 6.00 L

Q: Which one of the following pairs of acids and conjugate bases is incorrectly labeled or incorrectly…

A: A conjugate base is simply the substance that contains one less H atom and one more negative charge…

Q: Using only the periodic table arrange the following elements in order of increasing atomic radius:…

A: The given elements are Selenium Sulfur Polonium Tellurium We have to arrange the given elements in…

Q: 26)lf at 298K for a certain reaction mixture AG >0 and AG K and the reaction is spontaneous. b.…

A:

Q: How many grams is 6.13 x 1022 atom-ball of aluminum?

A: The formula required for the conversion from atoms to moles is : => moles = number of atoms given…

Q: iii) iv) v) Br₂ EtOH Br2 0 °C Br₂, 1 eq

A: The question is based on organic reactions.      we need to identify the product formed and explain…

Q: If energy flows into a chemical system and out of the surroundings, what is the sign of AEsystem?…

A: Energy flows into a chemical system and out of the surroundings.

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.