Which Ion with a +2 charge has the electron configuration Which atom has the electron configuration 1s^2 2s^2 2p^6 3s^2?

Q: 8). Write a detailed stepwise mechanism for the following free-radical monobromination reaction Br +…

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Q: Element L M 35 45 80 Atomic Number 30 O 115 Mass Number 80 Protons 35 Neutrons What is the number of…

A: Recall the data for element "M", Mass number =80 Protons =35 Charge = -1 Number of neutron = ?

Q: Classify each compound as a primary, secondary, or tertiary amine. 1. CH3CH₂CH₂NH2 2. 3.…

A: we have to classify the given amines as primary, secondary or tertiary

Q: propo -8- LiAlHy H30 OH PCC OH PB3 1) 42) H30 Br mg, Ether mgBr

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Q: Calculate the activation energy, Ea, for the reaction 2 N₂O5 (g) → 4 NO2 (g) + O2(g) rom the…

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Q: The pH scale measures the a. Concentration of OH- ions b. Concentration of H3O+(aq) ions c.…

A: pH scale measures the concentration of H+ ion and here H3O+ is the source of H+ ion.

Q: P20.30 Calculate (r) and the most probable value of r for the H atom in its ground state. Explain…

A: The answer is given below:

Q: What is the pH of a solution containing 0.1M ephedrine & 0.01 M of ephedrine HCl? The pKb of…

A: Here we have to find the pH of solution containing 0.1 M of ephedrine base and 0.01 M ephedrine. HCl…

Q: There are only two naturally-occuring stable isotopes of chlorine, the masses of which are listed in…

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Q: What is the pH of a buffer solution containing HAc and NaAc after enough NaAc has been added to make…

A: pH = pKa + log [NaAc]/[HAc]

Q: Determine the work done by an ideal gas while expanding by a volume of 0.25 L against an external…

A: Given : Pext = 1.5 atm              ∆V = 0.25 L  Tip : W = -Pext × ∆V

Q: Suppose 0.238g  of iron(II) chloride is dissolved in  100.mL  of a  14.0mM  aqueous solution of…

A: According to the question we have, The mass of the iron(II) chloride ( FeCl2 ) = 0.238 gm The volume…

Q: 19. Manganese-56 decays by beta emission and has a half-life of 2.6 hours. How many mg of a 20.0mg…

A: You have asked multiple type questions, we will solve only first  questions (19th )  for you. If you…

Q: What are the correct units for k? mol/(L. h) O (h. L)/mol O (h. mol)/L O L/(mol. h)

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Q: A chemist titrates 140.0 mL of a 0.1432M butanoic acid (HC3H,CO₂) solution with 0.5600M KOH solution…

A: Here 140 ml of 0.1432M butanoic  acid is titrated  with  0.56M of KOH solution. We have to determine…

Q: Y Part B The acid-catalyzed dehydration of an alcohol is an E1 reaction in the case of secondary and…

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Q: Structures of Molecular Compounds Formula H₂O SF₂ NI3 Report Table B.3: Molecular Compound…

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Q: Task 2. Order of reaction Direction: Answer the following questions. Show your solutions. A. Initial…

A: Answer: Power of concentration term of a reactant in the rate law is the order of reaction with…

Q: 0.85 g of hydrogen chloride (HCI) is dissolved in water to make 7.5 L of solution. What is the pH of…

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Q: CI CI

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Q: A quantity of gas in a piston cylinder has a volume of 0.466 m3 and a pressure of 200 Pa. The piston…

A: Initial Volume = V1 = 0.466 m3   Initial Pressure = P1 = 200Pa   Final Volume , V2 = 0.245 m3…

Q: Find the pH of a 1.4x10-5 M HCI solution. 5.0 X If 1 mL of 0.1 M NaOH is added to 1 L of the acid,…

A: Given that, The concentration of HCl solution = 1.4 × 10-5 M So the concentration of H+ ions = 1.4 ×…

Q: Which one of the following statements is incorrect? (a) According to the Gibbs phase rule, four…

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Q: Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs,…

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Q: Review & Preview Which is higher energy? 1s 3s 2p 3d 1s 2s OR OR OR OR OR OR 25 1s 3p 3p 2p 3d…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: In step 3 it says use that formula to find the concentration. Attached I have a table that shows…

A: Note the following in the given dilution formula and solve for M2. M1V1 =M2V2M1 = Concentration of…

Q: Potassium reacts with water to release hydrogen gas according to the following equation 2K(s) +…

A: Reaction:  2K(s) + 2H2O (l) → 2KOH(aq) + H2(g) According to the reaction stoichiometry, to produce…

Q: 1- For the above shown IR-Spectrum (Indicate the structure of the organic molecule). What are the…

A: Since you have asked multiple questions, we will solve the first question for you. For remaining…

Q: Decide whether the electron arrangement shown below represents a ground state, excited state, or…

A: Impossible  the given electronic configuration is an impossible configuration because it is not…

Q: Draw the major and minor product that could be formed when 2-methoxy-1,3-butadiene reacts with…

A: Given reaction is diels alder reaction.  Diene react with dienophile to form cyclic product.

Q: Cobalt-60 has a half-life of 5.27 years.  Considering a piece of that radioactive material, which…

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Q: can you show this example with better steps and replace the edge length with 0.481nm, density…

A: First we need to calculate the number of atoms to check the possibile crystal structure.  Then we…

Q: Determine the molecular mass of the following compounds CI 1 C=O (a) (b) (c) (d) H-CMC H Br CI H C=C…

A: For determination of molecular mass, first change into molecular formula then calculate the molar…

Q: A student conducted an experiment in a Styrofoam cup calorimeter that contained 100.0 g of water at…

A: #1: Mass of water inside the calorimeter = 100.0 g  Specific heat capacity of calorimeter, C = 4.2…

Q: To measure the concentration of an aqueous solution ofH2O2, an analytical chemist adds strong acid…

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

Q: Describe the variation of the acid strength for the hydrogen halide series and explain which one is…

A: Acidity character in increases down the group of the periodic table. Acidic character increases with…

Q: Like all equilibrium constants, the value of Kw depends on temperature. At body temperature (37°C).…

A: Given data :  Kw = 2.4×10-14

Q: Calculate the concentration of H2CO3 and HCO3- in a 0.145 M solution of H2CO3. (Ka1= 4.3x10-7 and…

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Q: A compound that dissociates in water to hydroxide ions must be a. Acid b. A salt c. A base d.…

A: Acid is the substance which dissolved in water to produce hydronium ion. Base is the substance which…

Q: Two layers form after the reaction - what is the main component and polarity of each layer? Choose…

A: We assume the 100% completion of reaction. So, there is no reactant left in the reaction mixture…

Q: Can you confidently dtermine if the molarities are precise? Explain why or why not.

A: No

Q: Be sure to answer all parts. Write the unbalanced chemical equation to represent each of the…

A: Here, we have to write the unbalanced chemical reactions for the given reaction statements.

Q: Consider the unit cell of a face-centred cubic structure of platinum (Pt) atoms, each with radius…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Question 6 If the plot is not displayed, please see Figure F13-4-2-b (the water phase diagram) in…

A: Answer: Triple point is the temperature and pressure values corresponding to a substance at which…

Q: This is my Lab 7 for Chemistry, Writing a chemical equation from titration data. I have looked at it…

A: Bromocresol green titration: Concentration of NaOH in g/ml = 0.0041 g/ml Volume of NaOH = 19 ml Mass…

Q: An analytical chemist is titrating 110.9 mL of a 1.100M solution of nitrous acid (HNO₂) with a…

A: First we need to calculate moles of both HNO2 and NaOH.  Then we have to draw an ICE table for…

Q: Part A Give the conjugate base of the following Brønsted-Lowry acid: HNO₂. Express your answer as a…

A: Concept based on Brosted-Lowry acid base theory. Proton donor is an acid and proton acceptor is a…

Q: • The work function energy for a particular metal is 2.80 eV (electron volts) per electron ejected.…

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Q: Determine the number of IR-active modes and the number of Raman active modes for SeF4. Show complete…

A: Point group of SeF4 is C2v Character Table for C2v :               E C2 (z) σv (xz) σv (yz)…

Q: Complete the table below, using the diagram of an atom shown at right. name symbol 8 0 proton Bo n 0…

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