If a reaction involving a single reactant is first order, with a rate constant of 4.50 x 102 s1, how much time is required for 75.0% of the initial quantity of reactant to be used up? O 11.6 seconds O 25.3 seconds O 16.7 seconds O 30.9 seconds

Q: b Predict the shape of the following molecule or ion: OSF4 trigonal bipyramidal linear seesaw square…

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Q: which of these cannot undergo a diels-alder reaction as the diene?

A: Given : structure of molecules.  Trans diene cannot show diels alder reaction

Q: Diethyl ether (CH3 CH₂ OCH₂ CH3) was one of the first chemicals used as an anesthetic. At 34.6°C,…

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Q: The K₂ of HClO₂ is 0.010. Determine the pH of a 0.1 M HClO₂ aqueous solution at equilibrium.

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Q: When an atom of uranium-235 is bombarded with neutrons, it splits into smaller nuclei and produces a…

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Q: Complete the following acid/base reaction: HNO3(aq) + Mg(OH)2 (aq) --> Mg(NO3)2 and H₂O O Mg(NO3)2…

A: Neutralization Reaction: A neutralization reaction is a reaction in which a neutral product is…

Q: Explain why the emission spectrum is sometimes referred to as an element’s fingerprint.  Determine…

A: •EMISSION SPECTRUM:-When electron comes from higher energy level to lower energy level it releases…

Q: A critical reaction in the production of energy to do work or drive chemical reactions in biological…

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Q: 50.0 mL of HCIO2 is titrated with 16.38 mL of 0.25 M NaOH before the color change of the endpoint…

A: 50.0 mL of HClO2 is titrated with 16.38 mL of 0.25 M NaOH before the color change of the enpoint…

Q: You are making 100 mL of a 0.66M phosphoric acid buffer with a pH of 7.0. What is the concentration…

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Q: Maine during its cold winter months differs from the fuel used in Arizona during hot summer months.…

A: Ans. Different grades of motor gasoline, the formulation of gasoline may differ depending on the…

Q: An equilibrium reaction has an mean for the reaction? equilibrium constant, Keq, of 0.92. What does…

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Q: Calculations for the Specidfic Heat for an Unknown Metal   Trial 1 Trial 2 Mass of unknown metal(g)…

A: Heat lost by metal is equal to the heat gained by water in the calorimeter as total energy remains…

Q: Visited Smallest H2A 3A 4A 5A 6A 7A He Li Be BCN O F Ne Na Mg 38 48 58 68 78 88- 1B 2B Al Si P S C1…

A: Isoelectronic species : They have same number of electrons as their electronic configuration is…

Q: What is the correct IUPAC name of the following compound? HO Problem viewing the image. Click…

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Q: a) KHCO3 (aq) + HNO3 (aq) → a) HNO3(aq) + Al(OH)3(aq) → b) Zn (s) + HBr (aq) → c) LiOH (aq) + H₂SO4…

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Q: The following is a diagram of energy states and transitions in the hydrogen ator ENERGY A B D E n:…

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Q: Suppose the stockroom made a mistake and gave you a mixture of potassium chlorate and potassium…

A: Mass percent can be defined as the how many part can exist for every 100 part as a whole.

Q: H₂N-CH- H A tripeptide consisting of valine, alanine, and glycine is shown here. Identify the…

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Q: What is the purpose of adding KI and HCl in the solution before titration?

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Q: The root mean square speed of a gas at 250.26 degrees Celsius is 332.50m s^-1. What is the molar…

A: Root mean square speed=3RTM where T is temperature and  M is molar mass of gas.

Q: The Lewis structure for SnCl3 is shown. What is the electron-pair geometry around the central atom?

A: Given : structure of molecule By the vsepr theory we can decide electron pair geometry.

Q: Given the following unbalanced reaction: F₂(g) + NO(g) + H₂O(l) F (aq) + NO3(aq) + H*(aq) How many…

A: Number of electrons transferred is determined by the change in oxidation state of oxidising agent or…

Q: 4) Write structures for products. Pay attention to stereochemistry OH L OH TsC1 Pyridine TsCl =+…

A: Addition reaction is a chemical reaction involving the addition of two or more molecules to form a…

Q: Thinking & Communication For each of the following questions please include the following…

A: This is the Clemensen Reduction type of reaction . In the above reaction the aldehyde reactant is…

Q: Provide the correct three-letter abbreviation for the following amino acid: O || H3N-CH-C-O I CH₂ I…

A: There are two questions given above from the topic of biomolecules of organic chemistry . They ask…

Q: Consider the Lewis-dot structure for PHBr2 below. State the electron geometry (EG) and molecular…

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Q: Calculation of Calories per Mass of Food   Quantity Mass of can (g) 12.623 mass of can and water (g)…

A: As per conservation of energy, total heat lost by burning the food is utilized in increasing the…

Q: 6.A 1L solution initially contains 0.4 mol of NH4+(Ka= 9.26 x10-10) and 0.6 mol of its conjugate…

A: we have to calculate pH of solution

Q: Which of the following types of radiation has the highest energy? O Gamma particles O Alpha…

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Q: [H3O+] 3.2X10-7 6.9 x 10-8+ Inf0% 8.7 x 10-7 [OH-] 2.4 x 10-¹0 pH 1.7 7.16 6.06 11.1 Acidic, basic…

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Q: Draw the Lewis dot diagram for the atoms with the following electron configurations:   a) 1s2, 2s2,…

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Q: Consider the physical process at 1 atm pressure: Br2 (l) -->  Br2 (g)   where  ΔHo = 31.0 kJ/mol and…

A: Br2 (l) -->  Br2 (g) ΔHo = 31.0 kJ/mol = 31000 J/mol ΔS = 93.0 J mol-1 K-1

Q: The following 5 questions refer to the chemical structure labelled (1) to (5) below   i). Write of…

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Q: Examine the following equilibrium table for the reaction shown at the top of the table. N₂O(g)…

A: Given data : Initial concentration of N2O4 = 0.150 M Initial concentration of NO2 = 0.100 M Given…

Q: Cobalt-60 is produced by a three reaction process involving neutron capture, beta-emission, and…

A: Nuclear chemistry is branch of chemistry in which we deal with nuclear fusion and fission reactions.

Q: CO, CO₂, CH₂OH, and CO32- all contain carbon-oxygen bonds. Draw Lewis structures for these molecules…

A: we have to arrange the given molecules/ions in order of increasing C-O bond strength

Q: Calculate the mass defect in Molydenum-96 if the mass of a Molydenum-96 nucleus is 95.962 amu. The…

A: Given,  Mass of Molybdenum-96 = 95.962 amu  Mass of a proton = 1.00728 amu  Mass of a neutron =…

Q: Examine the sigma bonding in ethene. What types of orbitals does each C atom use when forming sigma…

A: Here, we have to find the type of orbitals that are involved in the sigma and pi bondings in ethene.…

Q: A study of the system, 4NH3(g) +70₂(g) = 2N₂O4(g) + 6H₂O(g), was carried out. A system was prepared…

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Q: In chemistry,   p H = − log [ H + ]  . Given that   C   is the original concentration of hydrogen…

A: The pH value gives the idea about the acidic or basic nature of the given solution.  If pH < 7…

Q: How does adding a catalyst affect the rate of a chemical reaction? Has no effect on the rate of a…

A: Check the effect of addition of catalyst on the rate of the reaction.

Q: You create a mixture of water and acetic acid that possesses a mole fraction of acetic acid of 0.2…

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Q: Ethyl acetate reacts with sodium hydroxide when the two are mixed. The reaction, called ester…

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Q: Mass Percent of Oxygen (theoretical) 3 (Molar Mass of O) Molar Mass of KClO3 x 100

A: For the potassium chlorate (KClO3)  Using the molar mass of oxygen and KClO3 we can calculate the…

Q: Use the data below from an electron impact mass spectrum of a pure compound to deduce its structure.…

A: This question is mass spectrometry where we are the given the m/z values and from that we are going…

Q: The n-acceptor ligand attached to the metal, the rate of reductive elimin (a) enhance (b) lessen (c)…

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Q: rat CH3 CH3 - C - CI CH3 CH3 - CH3 — C — СІ CH3 OR + CH3 CH₂- О C он CACO H 0: CHICOH

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Q: For the reaction A→ Products, what should be grap O [A] vs time O 1/[A] vs [A] O In[A] vs time O…

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Q: At 500°C K, for the following reaction is 6.0 × 10-28. 2H₂O(g) → 2H₂(g) + O₂(g) What is K,for this…

A: We know that Kp= Kc.(RT)∆n T is temperature, R= 0.0821 lit-atm.mole-1.K-1 ∆n = change in no of moles…