A large mug containing 490 g of hot water at 90 °C is left sitting on a table, and gradually cools to 35 "C. How much heat was released to the environment (air, mug, and table) in kilocalories?

Q: 3. What would you expect to occur in the following reactions? a) b) H₂SO4, H₂O H₂SO4, H₂O 43

A:

Q: 7. Which of the following aqueous solutions will have the lowest vapor pressure? You should not have…

A: Lowering of vapor pressure is nothing but a colligative property and we know colligative property…

Q: PHASE CHANGES Test you 1. Go to solid Neon and slowly increase the temperature. Describe what occurs…

A: Solids occupy definite volume and shape, liquids adapt the shape of the container and gases expand…

Q: The following names are incorrect by IUPAC rules. Draw a condensed structural formula fe molecule…

A: IUPAC nomenclature of organic chemistry is a method of naming organic chemical compounds as…

Q: Which of the following is the least stable Newman Projection for 3-methyl hexane looking down the…

A:

Q: 5. Show how to carry out the synthesis using an aromatic halogenation reaction at one point in the…

A: This synthesis follows bromination of aromatic ring followed by Heck coupling to form C-C bond…

Q: What is the correct IUPAC name for the following molecule? 3-ethoxy-4-methyl cyclohexanol…

A:

Q: For the diprotic weak acid H₂A, K₁1 = 2.8 x 106 and K₁₂ = 7.5 x 10-⁹. What is the pH of a 0.0800 M…

A:

Q: * In this reaction alkene react with DMDO Form charge species. G 124

A:

Q: Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of…

A: Consider the given information as follows; 2 NH3 (g) →  N2 (g) + 3 H2 (g) Order of the reaction =…

Q: The compound chromium(II) sulfate, CrSO4 is soluble in water. Write the chemical equation for the…

A: Dissociation reaction: A dissociation reaction can be defined as a chemical equation where the…

Q: Which would be more difficult, extracting propionic acid from water with 1-butanol, or the…

A: In summary, when extracting propionic acid from water with 1-butanol, the propionic acid is less…

Q: (a) (c) (e) Ca-N-Ca-C-Ca-N-Ca-C C-N-Ca-Co-C-N Ca-Ca-C-N-Ca-Co-C Oc Ob Oe Oa Od Ca-N-C-C-N-Ca (b) (d)…

A:

Q: 12) What is the mass for 2.30 x 1023 particles of NC13? (Molar mass of NCl3 = 120.37 g/mol)

A: 12) Given,Number of particles of NCl3 = 2.30 × 1023Molar mass of NCl3 = 120.37 gmolRequired,…

Q: 271 Question out of the described bellow, which following graphs one of is NOT linear for the 2 of…

A: Given that, for the disappearance of the reactant A, we have to tell which one of them is not…

Q: A student ran the following reaction in the laboratory at 623 K: 2HI(g) H₂(9) + I₂(9) When she…

A: Check the value of x in the given reaction and calculate the equilibrium concentration of each…

Q: Which structure represents the addition polymer of the monomer shown below? Monomer: Answers: A. CN…

A: Well, addition polymerization is basically formed by the addition of unsaturated molecules, it can…

Q: Name, using an acceptable system of nomenclature, the major organic product of the following…

A:

Q: A student heats 84.17 ml. of water to 95.27 "C using a hot plate. The heated water is added to a…

A: Given,Volume of heated water = 84.17 mLVolume of cold water = 73.92 mLTemperature of heated water…

Q: What is the correct IUPAC name for the following molecule? 2-ethoxy-3-methylbutane…

A:

Q: What main product(s) would you expect if the following compound is refluxed in methanol (as a…

A: The SN1 reaction mechanism is a multi-step process that begins with the formation of the carbocation…

Q: 5. Using arrows to show electron movement, write the stepwise mechanism for the formation of the…

A:

Q: 2. What steps would be necessary for converting the following starting materials to the depicted…

A: The above reaction can proceed in a single step or in multi steps to get the final product.

Q: 6 6. Find AH for the following reaction: Fe2O3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO₂ (g) Use these…

A: 6) Given, a) 4Fe(s) + 3O2(g) ----> 2Fe2O3(s)  ∆H = -1648 kJ b) CO(g) + 1/2O2(g) ----> CO2(g)…

Q: A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady…

A:

Q: O Ligh Home Tren APTENT PRAT

A:

Q: 2. What reagent would you use for the following transformation? ? OH

A: In organic chemistry, there are verious kinds of reaction are there like, oxidation, reduction etc.…

Q: 10. Consider the transition state of the rate-limiting step in the following reaction: + AICIS TO…

A: Given that, a reaction is We have to draw the structure of the product and the most important…

Q: 3. In addition to vivid colors, the fireworks also use other visual features such as smoke, glitter…

A: In the given question, we have to write the ionic formula of the following compound,  writing the…

Q: 0. You may have noticed that the electron configurations are missing for a few of the elements. Use…

A: Given Symbol of Oxygen and Calcium. We need to write the electronic configuration of Oxygen and…

Q: The major product of the following reaction is S Br₂(excess), CHCl3, rt

A: Electrophilic aromatic substitution is benzothiophene will occur preferably at 3-position.But in…

Q: which data set is the least precise?

A: Accuracy and precision are essential properties of your measurements when relying on data to draw…

Q: Question which bellow #12 2A of the regarding the correspondin ding state rate equation is and the…

A: Statement C is incorrect This method can only be applied when the first step of the reaction is…

Q: THe answer was incorrect. Is there a way to possibly used the molar mass of both and then convert it…

A: Given , mass of palmitoyl-CoA  = 5.0 kg

Q: The reaction: 2 HI → H2 + I2, is second order and the rate constant at 800 K is 9.70 × 10-2 M-1 s-1.…

A:

Q: A dose of medication was prescribed to be 35 microliters. Which of the following expresses that…

A: In the given question, the dose of medicine is given in the unit of microlitre and we have to find…

Q: Given that 1 inch = 2.54 cm, 1.00 cm³ is equal to

A: In the given question, we have to do the unit conversion for the given data.

Q: The stopcock connecting a 1.00 L bulb containing krypton gas at a pressure of 678 mm Hg, and a 1.00…

A: We have to calculate the final pressure

Q: 1. Go to solid Neon and slowly increase the temperature. Describe what occurs to the particles of a…

A: The question posed is about the behavior of particles in solid neon as the temperature is gradually…

Q: The thermal decomposition of nitryl chloride, NO₂Cl, is believed to occur by the following two- step…

A: The number of reacting molecules that collide at once to produce a chemical reaction is known as the…

Q: 8) A student added a solution of OHions dropwise to a solution containing 0.10 M of Fe2+ and 0.10 M…

A: The problem is based on ionic equilibrium. Here we will use solubility product concepts to find the…

Q: PERIMENT D Flame Tests: Which lon Causes the Color? 5. How could you tell the following two white…

A: Flame test : It is used to visually determine the identity of an unknown metal based on the…

Q: 7. Complete the following table. element period Be He electron configuration 15²25² [Ne]3s Look at…

A: Prediction of Period from electronic configuration :   In the electronic configuration , the…

Q: Nitrogen monoxide and water react to form ammonia and oxygen, like this: 4 NO(g) + 6H₂O(g) →4…

A: Equilibrium constant at constant pressure, Kp is the product of the partial pressure of the…

Q: Use this graph to answer the following questions: What is the melting point of X ? What phase…

A: Introduction The melting point is the temperature at which a solid substance transitions to a liquid…

Q: Thinking about the activity today, why do we say that heated gasses are expanding, while cooling…

A: When a gas is heated, its temperature increases, causing the gas molecules to move faster and have…

Q: CH3 KMnO4 Acid ? [A]

A:

Q: To what volume should you dilute 50 mL of a 12 M stock HNO3 solution to obtain a 0.138 M HNO3…

A:

Q: The molarity of pure acetic acid is 18.1 M. What is the density of Acetic acid (MW=60.01 g/mole).

A:

Q: 1) 2) What are the two definitions of equilibrium as described in lecture? Write the equilibrium…

A: Introduction n chemistry, equilibrium refers to a state of a chemical reaction where the forward and…

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.