What is the entropy when 1.39 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

Q: The salt ammonium bromide is soluble in water. When 6.41 g NH,Br is dissolved in 110.00 g water, the…

A: INTRODUCTION: Solute dissolves when the heat is released ,thus the temperature of the solution…

Q: Calculate the maximum wavelength, ?max, of electromagnetic radiation that could eject electrons from…

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Q: Question 5 A solution has an [OH] concentration of 7.4 x 10-10 M at 25 °C. What is the hydronium…

A: we have to calculate the hydronium ion concentration

Q: The structure shown is an example of a type of macromolecule (carbohydrate, lipid, protein, or…

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Q: One hydrogen atom is indicated in each structure below. Which hydrocarbon is the most acidic ? H…

A: Aromatic compound are more stable than antiaromatic compound

Q: Write a balanced half-reaction for the oxidation of solid manganese dioxide (MnO₂) to permanganate…

A: Oxidation : Loss of electrons with increase in the oxidation state .Solid manganese dioxide MnO2…

Q: 55.0 g sample of nickel (specific heat = 0.433 J/g°C) at 100.0°C is added to 65.0 g of water at…

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Q: How many total moles of ions are released when 6.78 mol of Rb2SO4 dissolves completely in water? mol

A: Given, Moles of Rb2SO4 Rb2SO4 is an ionic compounds. When Ionic compound dissolved in water,…

Q: What about Part C?  Additionally for part B I'm not really getting the bottom of the 2nd page where…

A: Answer-b  Let's make the solution of part-B again in detail for better understanding. In the part-B,…

Q: Differentiate density, specific gravity, molar volume, and partialmolar volume. 2. What is the…

A: Question 1 --> Density is defined as the mass per unit volume whereas when we talk about the…

Q: What half reaction occurs at the anode during the electrolysis of molten potassium bromide: OK---->…

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Q: Calculate the number of carbon atoms in a 50.0 g sample of camphor (C10H160). Be sure your answer…

A: Mass of 1 mole = Molar mass  1 mole = 6.022 x 1023 particles/atoms/molecules

Q: Compound X has a molar mass of 134.12·gmol−1 and the following composition: element mass % carbon…

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Q: The pH of a basic solution is 12.99. What is [H⁺]?

A: The value of [H+] is = 1.023 x 10-13 M

Q: Calculate the molarity ( M ) of 153.9 g of  H2SO4 in 1.195  L of solution.

A: Answer: To solve this question we have to use the relation between moles of the solute, volume of…

Q: Part D Calculate the kinetic energy of CO at 294 K. Express the kinetic energy in joules per mole to…

A: The energy of molecules arising due to their motion is called as kinetic energy. The average kinetic…

Q: Which of the following accurately shows the curved arrows for an E2 reaction? (A) (C) H (B) (D) H

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Q: 3. For each of the following molecules, label each stereogenic center as R or S. Label the molecules…

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Q: (c) ê HO- H₂C=C OH + O=C=N- CH3 CH₂CH₂CH3 N=C=O

A: Here we have to write ploymerisation reactions of the following given reactions and have to predict…

Q: A reaction can take place and a new bond is formed when an electron rich species attacks an electron…

A: In the given molecular orbital diagram, RO- is the electron rich species acting as nucleophile and…

Q: In the circled atom in this structure. CH3 A) four sigma bonds B) three sigma bonds, one pi bond and…

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Q: Write the necessary reactants (a, c, and e) or the major product (b, d, f, and g) on the following…

A: Given : structure of reactant and product. Tip : halogenation reaction is occurring

Q: What statements are always true about limiting reactants? Select one or more: a. There will be an…

A: Limiting reactants : It is the reactant in the chemical reaction which is completely consumed for…

Q: Which of the following compounds is likely to adopt a planar conformation?. Explain.: (b) Draw the…

A: When system is conjugated and atoms are sp2 hybridized then system is planar. Isopropyl group can…

Q: Rank the acidity of the following compounds from weakest to strongest: a. HC=CH, CH3CH2CH3,…

A: Dear student, as you have submitted multiple questions, only first three subparts will be solved…

Q: Calculate ΔHrxnΔHrxn

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Q: Using the rules for writing the formulas of ionic compounds, write the ions and the correct…

A: We have to write the correct formula for magnesium oxide.

Q: The extraction of aluminum metal from the aluminum hydroxide found in bauxite by the Hall-Héroult…

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Q: Which color light has the largest photon energy? Group of answer choices blue violet (purple) orange…

A: We can see the change only in visible region of electromagnetic spectrum. Visible region consists of…

Q: Blast furnaces extra pure iron from the iron(III) oxide in iron ore in a two step sequence. In the…

A: Here we are required to find the mass of carbon needed to prepare 7kg of iron in Two step where…

Q: The concentration of hydroxide ion in an aqueous solution at 25°C is 1.8 × 10⁻⁴ M. What is the…

A: Given -> [OH-] = 1.8 × 10-4 M  Temperature = 25°C

Q: The useful metal manganese can be extracted from the mineral rhodochrosite by a two-step process. In…

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Q: ›Combining 0.357 mol Fe₂O3 with excess carbon produced 14.2 g Fe. Fe₂O3 + 3C2Fe + 3 CO What is the…

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Q: Find ΔHrxnΔHrxn for the reaction: C(s)+2H2(g)→CH4(g)C(s)+2H2(g)→CH4(g) Use these reactions…

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Q: There are three naturally-occurring isotopes of nitrogen (N) as follows: Nitrogen-14 in 95%…

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Q: What volume in mL of 0.220 M HBr solution is required to produce 0.0120 moles of HBr?

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Q: For parts b and c could you please explain why there is a cis isomer formed and how to know when…

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

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Q: Which of the following ligands experiences backbonding? Group of answer choices SCN- (when…

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Q: Air is a mixture of nitrogen, oxygen, and argon (and a few other trace gases that we will ignore…

A: nitrogen has a partial pressure = 870 torr, oxygen has a partial pressure =256 torr, and argon has a…

Q: Which is false about 1g 100% copper sulfate pentahydrate whose color is bright blue?

A: Copper sulfate, also known as blue vitriol, is a crystalline compound which contains water present…

Q: c) If a 25.00 mL sample of your solution from b) is placed in a 500.0 mL volumetric flask, filled to…

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Q: 4. When di-tert-butyl peroxide is used as an initiator, side reactions occur. Provide a mechanism…

A: 4. We have to give the mechanism for the formation of acetone from di-tert-butyl peroxide.…

Q: 2. The rate constant of a reaction at 32.0°C is 0.0550 s¹. If the frequency factor is 1.20 x 10¹3…

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Q: Consider the following ligand binding equilibrium at 25 °C: format) P+L=PL a) What is the K₂ for the…

A: Given, Ligand binding equilibrium . P + L⇌ PL     ∆G°=-8 kJmol

Q: Which of the following statements concerning hydrocarbons is/are correct? (1) Saturated hydrocarbons…

A: Which statement is correct?

Q: See Periodic Table See Hi A scuba diver exhales 4.25 L of air while swimming at a depth of 56.10 m…

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Q: How many photons are produced in a laser pulse of 0.691 J at 677 nm? photons:

A: Given data :

Q: At a certain temperature, 0.800 mol SO3 is placed in a 4.50 L container. 2 SO₂(g) 2 SO₂(g) + O₂(g)…

A: Kc is equal to the product of concentration of product divide by concentration of reactant

Q: An empty steel container is filled with 3.50 atm of H₂ and 3.50 atm of F₂. The system is allowed to…

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