Concept explainers
(a)
Interpretation:
The species with stronger bond needs to be determined.
Concept Introduction:
The atomic radius of elements are increased across a group from up to down of periodic table and decreased across the period from left to right in the periodic table.
(b)
Interpretation:
The species with stronger bond needs to be determined.
Concept Introduction:
The atomic radius of elements are increased across a group from up to down of periodic table and decreased across the period from left to right in periodic table.
(a)
Interpretation:
The species with the stronger bond needs to be determined.
Concept Introduction:
The atomic radius of elements are increased across a group from up to down of periodic table and decreased across the period from left to right in periodic table.
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CONNECT IA GENERAL ORGANIC&BIO CHEMISTRY
- Explain the decomposition of nitroglycerin in terms of relative bond enthalpies.arrow_forwardA particular chemical reaction has AH° = +250 kJ/mol. Which of the following statements are true concerning this reaction? Choose all that apply Heat moves from the system to the surroundings The reaction is endothermic Overall bond length has increased in the products The molecules in the system will slow down as the kinetic energy is converted to potential energy O The enthalpy of the products is lower than the enthalpy of the reactantsarrow_forwardIn an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy (a measure of the attractive force holding those ions together). Based on ion sizes, arrange these compounds by their expected lattice energy. Note that many sources define lattice energies as negative values. Please arrange by magnitude and ignore the sign. |lattice energy| = absolute value of the lattice energy CSF Greatest lattice energy (strongest bonds) Least lattice energy (weakest bonds) CsBr Answer Bank CsCl CSIarrow_forward
- For the following chemical reaction determine the heat of reaction (Bond enthalpy). Is this reaction exothermic or endothermic? H2C == CH2 + HCl ⟶⟶ CH3CH2Cl Bond Energy: C–H : 100 kcal/mol ; C=C: 145kcal/mol ; C-C: 83 kcal/mol ; H-Cl: 102 kcal/mol ; C-Cl : 81 kcal/mol bonds in reactant : 4 C-H , C=C, H-Cl bonds in Products: C-C, 5 C-H, C-Clarrow_forwardOrganize these given salts; LiF, KBr, CaO, BaS, MgCl2 Put them in the order of increasing magnitude of lattice energy.arrow_forwardIn an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy (a measure of the attractive force holding those ions together). Based on ion sizes, arrange these compounds by their expected lattice energy. Note that many sources define lattice energies as negative values. Please arrange by magnitude and ignore the sign. |lattice energy|=absolute value of the lattice energy KCl KI KBr KFarrow_forward
- In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy (a measure of the attractive force holding those ions together). Based on ion sizes, arrange these compounds by their expected lattice energy. Note that many sources define lattice energies as negative values. Please arrange by magnitude and ignore the sign. |lattice energy| absolute value of the lattice energy Greatest |lattice energy| (strongest bonds) Least |lattice energy| (weakest bonds) Answer Bank CsF CsI CsBr CSCIarrow_forwardIn an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy (a measure of the attractive force holding those ions together). Based on ion sizes, arrange these compounds by their expected lattice energy. Note that many sources define lattice energies as negative values. Please arrange by magnitude and ignore the sign. |lattice energy| absolute value of the lattice energy Greatest |lattice energy| (strongest bonds) Least |lattice energy| (weakest bonds) Answer Bank CsF RbF NaF LiF KFarrow_forward1. Hydrogen (H2) and oxygen (O2) react to produce water (H2O). (a) Write down the equation for the above reaction. (b) The enthalpy change of reaction is –286 kJ mol-!. Is the reaction endothermic or exothermic? (c) What kinds of bonds are broken during the reaction? (d) What kinds of bonds are formed during the reaction? (e) Construct a diagram showing the change in enthalpy for the reaction.arrow_forward
- Calculate the lattice energy of KCI(s) using the following thermodynamic data (all data is in kJ/mol) K(s) AHsublimation = 69 kJ/mol K(g) Ionization energy = 399 kJ/mol CI-CI(g) Bond energy = 223 kJ/mol Cl(g) Electron affinity = -369 kJ/mol KCI(s) AH°r= -457 kJ/mol kJ/molarrow_forwardDetermine the crystal lattice energy for MgCl2, given the following information: Cl2(g) → Mgčl2(s)AH°f = -642 kJ/mol 2+ (Mg - AHvaporization = 147.7 kJ/mol, Mg- Ejionization = 2188.4 kl/mol, Cl2 - EBond = 248 kJ/mol, Cl" - Ejonization = -349 kJ/mol)arrow_forwardRank the following ionic substances in terms of WEAKEST lattice energy to STRONGEST lattice energy. KBr, NaCl, MgO, Csl list it weakest to strongest lattice energy pleasearrow_forward
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