The energy required to break one mole of a hypothetical element X-X bonds in X2 is 145 kJ/mol. What is the longest wavelength (in nm) of light capable of breaking a single X-X bond?

Q: 67. Which of the following processes is e A) Bond breakage B) ionization C) dissociation D) bond…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: Calculate the enthalpies of formation, AH;, of group 1 chloride compounds from their elements by…

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Q: wavelength

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Q: A.)  What is meant by the term polarizability?                     B.)   Which of the following…

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Q: The average bond enthalpies of the C¬F and C¬Cl bonds are 485 kJ/mol and 328 kJ/mol, respectively.…

A: Maximum energy of photon is given by:

Q: 9. The following figure shows the potential energy as a function of the distance between two…

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Q: Which of the following species has the smallest ionic radius? O Mg2+ O 52- Na+ O A13+

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Q: Consider hypothetical elements X2 and Y2. Suppose the enthalpy of formation of the compound XY is –…

A: The Enthalpy of formation is calculated by the following formula ∆Hrxn=∑BEproduct-∑BEreactant The…

Q: what is the relation between bond energy and atomic size?

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Q: (c) The standard enthalpy of formation of O(g) is 249 kJ/mol. Calculate the wavelength (in nm) of…

A: Given data Enthalpy of formation of O (g) = 249 KJ/mole It means  12 O2 (g) → O (g)          ∆H=249…

Q: The energy required to break one mole of hydrogen bonds in H2 (g) is 436 kJ. What is the longest…

A: Energy of photon is given by  E=hc÷lmbda Photon is defined as energy of Photon which is required to…

Q: 7. K/U Explain how an attractive force can exist between non-polar molecules. 12. K/U Under what two…

A: "Since you have asked multiple questions, we will solve the first question for you ( as per our…

Q: How are measurements of paramagnetism used to support electron configurations derived…

A: How are measurements of paramagnetism used to support electron configurations derived…

Q: Carbon-carbon bonds form the “backbone” of nearly every organic and biological molecule. The average…

A: Given data contains, The average bond energy of C-C is 347 kJ/mol.

Q: The energy required to break one mole of fluorine-fluorine bonds in F2 is 155 kJ/mol. What is the…

A: Write the expression of energy with the wavelength of light. E=hcλ where h is Planck constant, c is…

Q: By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with…

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Q: Consider the A2X4 molecule depicted here, where A and Xare elements. The A¬A bond length in this…

A: Atomic radium always measures the atom's size or in general, it is the main distance of nucleus and…

Q: y Choose the atom or ion in each pair which best fulfills the given criterion: (i) Greater atomic…

A: As per the bartleby expert guidelines, I am allowed to answer first threw questions at a time.…

Q: What is the periodic trend in ionic size for the cations of these alkaline earth elements: Mg2+,…

A: Atomic size tends to decreases as we move down group. Cations have lesser number of electrons than…

Q: In the H atom , what is the correct order (arrangement) of energy levels * O 3s = 3p =3d O 3s>3p>3d…

A: option A (3s=3p=3d) is correct. Concept: For Hydrogen like species i.e. single electron species…

Q: The length of a covalent bond depends upon the size of the atoms and the bond order. For each pair…

A: In (A) the bond order is 3 and in (B) the bond order is 2. Since, the bond order of (A) is greater…

Q: 3. Xenon is a noble gas. What must happen for Xenon, or any other noble gas, to be able to form…

A: The noble gases have filled ns2np6 electronic configuration in their valence shell. They have very…

Q: 6. a) describe the special case in secondary bonding in your own words. Give one example of this…

A: Secondary bonding

Q: Use the following data to estimate AH; for lithium chloride. Li(s) +, Cla (9) → LICI(s) Lattice…

A: Given reaction,     Li(s)  +  12Cl2(g)  →  LiCl(s)

Q: Carbon-carbon bonds form the “backbone” of nearly everyorganic and biological molecule. The average…

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Q: 9 Which of the following atoms or ions is most paramagnetic? a. b. Zn2+ Gd d. U6+ c.

A: The ions which has most number of unpaired e- in valence shell and outermost shell will have the…

Q: Question attached

A: Cation is smaller than anion. An atom loses one electron to form a cation. When one of the electron…

Q: Explain the concept of Bond Length and Bond Strength ?

A: Bond length is the distance between the nuclei of the two chemically bonded atoms.  It is equal to…

Q: The molecule XZ2 is formed from the hypothetical elements Z and X.  In that molecule both of the Z…

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Q: Describe the location of electrons; describe how electron placement determines chemical bonding,…

A: The electron which is negativily charged species present in the hollows space of the atom and rotate…

Q: If the energy of the H2, covalent bond is –4.48 eV, what wavelength of light is needed to break that…

A: Given data,The energy of the H2 covalent bond is -4.48eV.The minimum energy of the photon to break…

Q: 4. Write the electron configurations for the following atoms and ions (can abbreviate) a. K b. O c.…

A: Electronic Configuration is the distribution of electrons in the energy levels of the atom. The…

Q: The energy required to break one mole of hydrogen-hydrogen bonds in H2 is 436 kJ.  What is the…

A: Energy per mole of photons has to be converted to energy per photon.

Q: Use the following data to calculate the enthalpy change for the following reaction:  2Na(s) + O2(g)…

A: The question is based on the concept of born Haber cycle and hess law. the given reaction is the…

Q: Which group of compounds have largest electron affinity? O a oxygen family Ob. halogens Oc arbon…

A: To find: Group of compounds that have the largest electron affinity: a. Oxygen Family b. Halogens c.…

Q: The bond length in H- I (1.62 Å) is close to the sum ofthe atomic radii of H (0.37 Å) and I (1.33…

A: Given: The atomic radii of H and I is 0.37 A∘ and 1.33 A∘, respectively. The bond length of HI bond…

Q: b. This N-N bond can be broken by light of wavelength (A) 733 nanometers or shorter, what is the…

A: Wavelength and frequency are inversely proportional to each other . The relationship can be…

Q: A student investigates the physical and chemical properties of various carbon-containing compounds.…

A: The bond length is defined as the distance between nucleus of one atom to the nucleus of another…

Q: How many valence electrons does ns^2 np^4 have

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Q: The length of a covalent bond depends upon the size of the atoms and the bond order. For each pair…

A: 1) The 2 bonds given are C≡O and C-O. Since the atoms are same in both the bonds i.e carbon and…

Q: The N2+ ions that are formed when electrons with ionization energies of 15.6 eV and 16.7 eV are…

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Q: The attractive force between a pair of Sr2+ and O2- ions is 1.52 x 10°N and the ionic radius of O2-…

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Q: Which Atom or ion ineach of following pairs has a Lorger radiuo? A N3- or N B Cazt or Baz+ キこ or Al3

A: Given: To compare the radius of anions.

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.