What is the energy change when the temperature of 12.1 grams of gaseous krypton is decreased from 39.3 °C to 24.1 °C ? Answer: Joules. In the laboratory a student finds that it takes 120 Joules to increase the temperature of 12.1 grams of solid sulfur from 23.3 to 37.9 degrees Celsius. The specific heat of sulfur calculated from her data is J/g°C.

Q: This molecule reacts with HBr to form an alkyl halide. Would this reaction be sn1 or Sn2 and explain…

A: Given : structure of molecule.  Tip : if carbocation is stable then SN1 otherwise SN2

Q: 3 CH,Br(9) + NH,(9)→ (CH₂), N(!) + 3 HBr(9) AH-73. kJ Use this information to complete the table…

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Q: At 1125 K, ∆G° = 28.4 kJ/mol for the reaction 3 A (g) + B (g) → 2 C (g). If the partial pressures of…

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Q: To measure the concentration of an aqueous solution of H2O2, an analytical chemist adds strong acid…

A: According to the question we have, A balanced chemical equation, 6H+(aq) + 5H2O2(aq) + 2MnO4- (aq) →…

Q: Draw the starting structure that would lead to this polymer underradical conditions. Please explain…

A: A polymer is a large molecule that is formed by the repetition of small units called a monomer, and…

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Q: Heat is applied to 50g of water (specific heat of 4.18J/°C) at 25°C.  The temperature of the water…

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

Q: Determine the empirical formula for the made-up compound with the following percent composition…

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Q: When 904. mg of a certain molecular compound X are dissolved in 60.0 g of benzonitrile (CHCN), the…

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Q: Provide the correct IUPAC name for the compound shown here. OH

A: Rule of IUPAC-1) Longest chain as parent chain.2) Numbering start from those side where more prior…

Q: O A CI (CH3)2CuLi ? ОН ОН др B C OH D

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Q: Provide the correct IUPAC name for the compound shown here. Br CI

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Q: The molecules with permanent dipole moment are IR active. Select one: True False

A: Given,  The molecules with permanent dipole moment are IR active.

Q: للا 3 2 PPM 1 0

A: Given

Q: How many isomers are possible for the octahedral coordination complex [Cr(NO) 3 (CI) 3]³+?

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Q: = ELECTROCHEMISTRY Writing the half-reactions of a complex redox reaction in acidic ... Write…

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Q: What is the best choice of reagent(s) to perform the following transformation? OH A) CH31, H2SO4 B)…

A: -> When carboxylic acid reacts with alcohol it form ester and water  it is called esterification…

Q: Write the product if the compound reacts with CrO3

A: Here, oxidation state of CrO3 is +6. During the course of reaction, it will reduced to +3. Hence, it…

Q: The following are equations of interest in a laboratory similar to your current exercise. Your goal…

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Q: Out of these ions Li1+  Mg2+  Br-1  Te2- Which ion has the largest radius?

A: In general Cationic species will be the smallest Followed by neutral will be large. Anionic species…

Q: 70.0 mL of a 0.15 M weak acid (K₂ = 1.8 x 105 ) is titrated with 10 mL of a 0.50 M strong base.…

A: Neutralization reaction is  HA + B →BH+ + A- 1 mole weak acid is neutralized by 1 mole base.

Q: Choose the best reagents to complete the reaction shown below. Kil HO. HO A B E Br2 H₂O 1. LiAlH4 2.…

A: We know to cleave ether, it requires very harsh condition. However, epoxides do not requires such…

Q: Ammonium perchlorate (NH CIO) is the solid rocket fuel that was used by the U.S. Space Shuttle and…

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Q: Draw the mechanism for the following reaction. Show all intermediates, including the depiction of…

A: Given : structure of reactant and product Tip : hydrolysis of acetal.

Q: CHY+ -OH →· CH3 + H₂O elementary reaction a the rate constant...of. q reaction is. 4.75 x 10 m³.…

A: We know for  an elementary reaction order = molecularity so order of the reaction is 2 . For a 2nd…

Q: A gas that obeys the equation of state: P = RT V-b a T²V² For this gas, determine the Boyle…

A: We are given the equation of state. We need to find Boyle temperature expression and a/b ratio.

Q: Provide the correct IUPAC name for the compound shown here. OH

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Q: What is the relative atomic mass of a hypothetical element that consists of the following isotopes…

A: Here, we have to find the relative atomic mass of a hypothetical element from the isotopic masses…

Q: A stock solution of NaOH was prepared by dissolving 1.584g of NaOH in water and diluting to a final…

A: According to the question we have, The mass of the NaOH is given by = 1.546 g The volume of the…

Q: H₂C CH3 2 H 2 1 CH3 CH₂ CH3

A: Priority is given on the basis of atomic number, high atomic number means higher priority. Atomic…

Q: E H3C- NH₂

A: Answer:- This question is answered by using the simple concept of chemical reactions of organic…

Q: The concentration of H₂SC Calculate [H3O*], [HSO3]. Ka1 = 1.0 x 10-2, Ka2 = 6.0 H₂SO3 F

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Q: The heat of fusion AH, of acetic acid (HCH₂CO₂) is 11.7 kJ/mol. Calculate the change in entropy AS…

A: Given: The heat of fusion of acetic acid = 11.7 kJ/mol We have to calculate the change in entropy…

Q: Calculate the pH of a solution that contains [H3O+] = 6.58 x 10-5 M.

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Q: carbonate CaCO3 in a seashell, an analytical chemist crushes a 4.40g sample of the shell to a fine…

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Q: What combination of diene and dienophile undergoes Diels-Alder reaction to give the following…

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Q: When a reducing sugar reacts with Benedict reagent, what organic product is formed besides Cu20? Why…

A: The Benedict's reagent is made up of Copper sulfate pentahydrate, sodium carbonate and sodium…

Q: Provide the correct systematic name for the compound shown here.

A: The given compound is a hydrocarbon, alkane. The IUPAC name of an alkane can be written on the basis…

Q: If 25.0 mL of 0.10 M NH3 (Kb = 1.8 x 10-5) is used to titrate 0.038 L of 0.30 M HCI, the pH is: Your…

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Q: Consider the following reaction: CH4 (9) +20₂ (g) → CO2 (g) + 2H₂O(1) ΔΗ = -891 kJ a. Calculate the…

A: AS PER ANSWERING GUIDELINES I WILL ANSWER ONLY THE FIRST ONE, IF YOU WANT THE REST POST THEM…

Q: In the redox reaction between [FeBr6] 3− and [V(H2O)6] 4+ one electron is transferred, reducing the…

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Q: Macmillan Learning The energy of a photon is related to its wavelength through the following…

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Q: Which of the following statements regarding electromagnetic (EM) radiation, behaving like a wave…

A: Electromagnetic radiation consists of particles called photons and energy of a photon is directly…

Q: Ammonia forms (two words) with many transition metal ions. Name each compound (except the copper…

A: We need to fill the blanks of first sentence and name each compound given in the question. After…

Q: Name the following compounds: 1. 2. 3. 4. 5. Br H₂C-CH-CH₂-C-OH --OH H₂C-& -CH₂-CH₂ H₂C-CH…

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Q: The unknown compound is one of the following Methyl Salicylate Benzoic Acid Salicylic Acid…

A: We need to identify the compound using FTIR and C13 NMR spectra provided. The compound can be…

Q: In a titration of 25.0 mL of hydrochloric acid solution with 0.107 M NaOH solution, 15.35 mL of the…

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Q: Calculate the change in internal energy, AU (in kcal), for the reaction H₂(g) + 1/2O2(g) = H₂O(1).…

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Q: Propose a stepwise reaction mechanism for the following reaction: abbast Ph Ph Ph. Ph NaOH OEt Ph.…

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Q: The Michaelis-Menten equation models the hyperbolic relationship between [S] and the initial…

A: from above data that   [S] < < Km   [Efree] is about equal to [Etotal] [ES] is much lower than…