Atomic Emission Review Questions ame Section . How do energy? (Hint: Compare your observations of the lines observed from the sunlight in the lab window versus your observations of a gas emission tube.) your observations of line spectra using the Boreal spectroscope support the concept of quan

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Q: How much energy is released during the formation of 98.7 g of Fe according to the reaction below?…

A: Given reaction is :  Fe2O3 (s) + 2Al (s) ----> Al2O3 (s) + 2Fe (s) , ΔHrxn = -852 KJ/mole  How…

Q: quation the dehydration synthesis of glucose and fructose. NG GOAL 15: The Structures of Cellulose…

A: Starch and cellulose are  comparable polymers usually arise. In truth, both are made of the same…

Q: Enter your answer in the provided box. Given the following data, 2+ 2H3²*(aq) + 2e → Hg2"(aq) E° =…

A: The relation between ΔG° and E°cell in an electrochemical reaction is given by - ΔG° = - nFE°cell

Q: Question 9 Consider a solution consisting of 1.75 mol water and 0.97 mol ethanol. What is the Gibbs…

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Q: Provide an IUPAC name for the structure shown. H

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

Q: Is caffeine an addictive substance? If so, is it psychologically addictive, physiologically…

A: Here, we will discuss about the addictiveness of caffeine,chocolate and bubble gums.

Q: Consider the following decay series: a a14. Pb b 214. Bi C 214 Po 210 Pb se Po Which type of nudear…

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Q: 3Ce+ (aq) + Bi(s)+ H2O(1)→3Ce3+ (aq) + BiO+ (aq)+2H+(aq) Express the equilibrium constant to two…

A: Given,  Part. B :-  Balanced reaction is :  3Ce4+ (aq) + Bi (s) + H2O (l) ------> 3Ce3+ (aq) +…

Q: According to Hess's Law: AHReaction = AHsolution + AHNeutralization %3D Calculated AHR Percent Error

A: Given, experimental value of ∆HR is -18194.6 cal/mol.

Q: Resorcinol gives a false positive with the Duquenois–Levine test. Why?

A: The Duquenois-Levine test is based on the 1,3-dioxybenzene partial structure. Any substance that…

Q: Calculate the volume in milliliters of a 1.9M iron(II) bromide solution that contains 225. mmol of…

A: Given :-  Molarity of FeBr2 solution = 1.9 M  Number of moles of FeBr2 = 225. mmol  To calculate :-…

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A: According to the question, we need to determine which of the following electrochemical methods…

Q: c) Frequency vs. elnergy 3. When sodium is excited in a flame, two ultraviolet spectral lines at 2…

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Q: Balance the chemical equation given below, and determine the number of milliliters of 0.0850 M…

A: Given :-  Unbalanced equation :-  BaOH)2(aq) + H3PO4(aq) →  Ba3(PO4)2(s) + H2O(l)   Molarity of…

Q: A galvanic cell was set up using the half cells of Cu2+/Cu (E = 0.34 V) and Fe3+/Fe2+ (E = 0.77 V).…

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Q: 4. For over-the-counter preparations, inactive ingredients are called fillers. Are these the…

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Q: In a two-vessel technique titration set-up, what is the unknown substance if the volume of…

A: Given  A titration method is given we have to find out the unknown substance .

Q: Write a complete equilibrium expression for: A(aq) + 2 B (aq) C (aq) (I've given you a table, think…

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Q: On the illustration of a generic cell for In/Zn electrodes immersed in their salt solutions Use the…

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Q: 26. Given the following reaction, what volume of oxygen would be needed to react with 250. grams of…

A: Moles of propane = 250 g / 44.1 g mol-1 =5.6689 mol 1 mol of propane = 5 mol of O2 5.6689 mol…

Q: In which of the following pure compounds would intermolecular hydrogen bonding be expected? (Select…

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Q: 14. The grams of SO2 produced will be: A) 65.70 B) 72.00 C) 81.35 D) 61.66 E) 63.59

A: SO2 molecular weight = 64. Therefore 1 mole of SO2 compound weight is equal to 64 grams ( 63.59).

Q: Which of the following phase diagrams corresponds to a system wherein boiling occurs before the two…

A: For the liquid-liquid phase diagram, the phase diagram that represents a system wherein boiling…

Q: The concentration of hydrogen peroxide decreases from O. 1 mol/L to 0.05 mol/L in 900 s at 240C on…

A: a ) Half life is defined as the time required to reduce the concentration of a substance to half .…

Q: Considering perfect gases, which state function is zero when two substances are mixed?…

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Q: lanced NET ionic equation for the reaction when Na, ixed in aqueous solution. If no reaction occurs,…

A: The reaction between Na2S and ZnCl2 Molecular reaction  Na2S(aq.) + ZnCl2(aq.) ---> 2NaCl(aq.) +…

Q: 9. Classify each of the following changes as chemical or physical: a. chewing a gum drop b. an…

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Q: Multiple Choice 41 52 0.49 5.8 x 10-3 4.6 x 10-3

A: Given,  Kp = 0.49 Temperature = 1024 °c = 1297 K R = 0.0821 atm-L/mol-K □ng =change in gaseous moles…

Q: Consider the phase diagram of carbon dioxide. What is the critical temperature of carbon dioxide?…

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Q: The vapor pressure of pure CCl4 at 65oC is 504 mmHg. How many grams of naphthalene (C10H8) must be…

A: Given- Vapour pressure of pure CCl4=504 mmHg Weight of CCl4= 25.00 gram  Vapour Pressure of solution…

Q: What is the equilibrium constant expression for the reaction: 3 Fe(s) + 4 H2O (g)⟷  Fe3O4 (s) + 4 H2…

A: Given :-  3 Fe(s) + 4 H2O (g)⟷  Fe3O4 (s) + 4 H2 (g) To write :-  Equilibrium constant expression…

Q: What is the slope of an Arrhenlus plot for the following reaction? 2NOCI - 2NO + Cl2 Temperature (K)…

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Q: A chemist adds 1.05 L of a 0.40 mol/L calcium bromide (CaBr,) solution to a reaction flask.…

A: Given :- molar concentration of CaBr2 = 0.40 mol/L                Volume of solution = 1.05 L   To…

Q: The osmotic pressure of an aqueous solution at 309 K is 120 kPa. Calculate the freezing point of the…

A: For aqueous solution , freezing point is given as :  Freezing point of solution = Freezing point of…

Q: Which of the following aqueous solutions are good buffer systems? 0 0.33 M ammonia + 0.39 M sodium…

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Q: What is the percent of chloride ion in a sample if 2.500 g of the sample produces 1.750 g of AgCl…

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Q: A 340.9 g sample of silver is subjected to a temperature change of -34.29 °C. The specific heat…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: Based on the ternary phase diagram, a binary mixture of furfural and water will always split into…

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Q: 3. During the experiment, when calculating AH using the formula AH=C x AT, can we calculate the AH…

A: Ans 3. Formula    ∆H = C x ∆T ,     where ∆H is the change in enthalpy,                ∆T is the…

Q: .To find the concentration of an acid solution, pure sodium carbonate can be used as a standard. In…

A: Given: Mass of sodium carbonate i.e. Na2CO3 used = 2.15 g. And the volume of HCl solution used =…

Q: A solution was prepared by dissolving 12.0 g of glucose (180 g/mol) in 150. mL solution. What is the…

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Q: 13.40 Calculate the equilibrium constant for the following reac- tions using data from the standard…

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Q: At 700 K, the reaction 2502(9) + O2(9) = 2503(9) has the equilibrium constant Ke = 4.3 x 106, and…

A: Given - - > Kc = 4.3 x 106 [SO2] = 0.010 M [SO3] = 10 M [O2] = 0.010 M

Q: Estimate the freezing point of 250 cm3  water sweetened by the addition of 2.7 g sucrose. Treat the…

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Q: The activation energy for the following first-order reaction is 102 kJ/mol. N205(G) – 2NO2(9) +…

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Q: Using net ionic equations and solution stoichiometry, calculate the molarity of the principal…

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Q: Liquid mercury has a density of 13.69 g cm-3, and solid mercury has a density of 14.690 g cm-3 both…

A: Given that, at -38.87°C and 1 bar pressure, The density of liquid mercury is dl = 13.69 g/cm3. The…

Q: Serine esterase contains a catalytic triad at its active site. Which amino acid in serine esterase…

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Q: 218- E 0.006- C A 0.01 100 374 Temperature (°C) vap

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Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.