Free Response Questions in this section are not weighted equally. Allocate your not (11) gepo to norle 1) Write the correct chemical bonds {ionic (I), nonpolar covalent (NPC), polar covalent (PC)} Compound Type of bonds be 201 (6 BELAT G a) F2 b) NF in NF3 TAR HO DOS paslov to vadmun lato c) LiCl 01 (3 d) P4

Free Response Questions in this section are not weighted equally. Allocate your not (11) gepo to norle 1) Write the correct chemical bonds {ionic (I), nonpolar covalent (NPC), polar covalent (PC)} Compound Type of bonds be 201 (6 BELAT G a) F2 b) NF in NF3 TAR HO DOS paslov to vadmun lato c) LiCl 01 (3 d) P4

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter6: Covalent Bonding

Section: Chapter Questions

Problem 6.CCP

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3-109 Until several years ago, the two chlorofluorocarbons (CFCs) most widely used as heat transfer media in refrigeration systems were Freon-li (trichloro fluoromethane, CC13F) and Freon-12 (dichiorodi fluoromethane, CCl2F2). Draw a three-dimensional representation of each molecule and indicate the Direction of it.s polarity.
3-122 Some of the following structural formulas are incorrect because they contain one or more atoms that do not have their normal number of covalent bonds. Which structural formulas are incorrect, and which atom or atoms in each have the incorrect number of bonds?
2RO; (aq) + 12 H* (aq) + 3 M (s) = RO (g)+3M²* (aq) + 6 H2O (1) = 3.86 V. R: 5 valence e-, electronegativity of R = 3.3 M: 2 valence e-, electronegativity of M = 0.5 O and H represent Oxygen and Hydrogen (the known elements, with their known properties) All atoms follow the octet rule; except for Hydrogen which follows the duet rule. b) Calculate the new cell potential if concentrations of all the reactants is deceased to 0.5 M, and the concentrations of all the products is increased to 0.5 M. Assume 6 mol electrons transferred in the reaction.
Every atom in the molecule below shows a correct bonding pattern (free electron pairs are not shown). The molecule also contains at least 2 Cs and at bond: // H-C-C | ОН O True O False エーOーエ

The dipole moment (u) of HBr (a polar covalent molecule) is 0.824D (debye), and its percent ionic character is 12.2 %. Estimate the bond length of the H-Br bond in picometers. Note that . 1 D 3.34 x 10-30 Cm and in a bond with 100% ionic character, Q=1.6 x 10-19 C. Express your answer to two significant figures and include the appropriate units. View Available Hint(s) r = μA Value 6 O Units ? Inits input for part B
Draw all possible resonance structures for SO2, S0,, and SO. Use the resonance structures to solve the problems below. (a) Arrange these species in order of increasing S-O bond length (shortest bond first). O SO O SO O SO2 O SO2 O so;²- O SO O So3? O SO2 (b) Match each species with the number of covalent bonds predicted by Lewis structures to exist between an S atom and an O atom bonded to this S atom. (Hint: Average the number of bonds between S and an attached oxygen atom in a particular position using all of your resonance structures for the species that you are working on.) SO: -Select-v bonds between S and 0. -Select--- v bonds between S and O. SO2: Select-v bonds between S and O. (c) Match each species with the correct formal charge on the central S atom. SO: Select- charge on S. SO2: Select--v charge on S. SO32:-Select-vcharge on S. (d) Match each species with the average formal charge on an outside oxygen atom predicted by Lewis structures. so: -Select-vaverage charge on…
2RO; (aq) + 12 H* (aq) + 3 M (s) = RO(g)+ 3M²* (aq) + 6 H2O (1) E°rxn = 3.86 V. R: 5 valence e-, electronegativity of R = 3.3 M: 2 valence e-, electronegativity of M = 0.5 O and H represent Oxygen and Hydrogen (the known elements, with their known properties) All atoms follow the octet rule; except for Hydrogen which follows the duet rule. Does the above reaction favour the forward or reverse direction? If the concentration of RO; (ag) was reduced and What is the pH of this reaction? explain the reasons for your answers.
For each of the following covalent bonds: (a) use the symbols δ+ and δ- to indicate the direction of polarity (if any).(a) C-F; (b) N-Br; (c) B-C; (d) Si-H(b) Rank the following covalent bonds in order of increasing polarity. (i) C-H, O-H, N-H; (ii) C-N, C-O, B-O; (iii) C-P, C-S, C-N
II. Please expand each of the following bond-line formulas to the corresponding standard Lewis structure, be sure to show all the bonds and unshared electron pairs as well as formal charges, if it applies. 0: (a) (c) O Br | Br-B-Br -N- (b) HO: NO₂ 0: blos ohsup?
Part B The dipole moment (u) of HBr (a polar covalent molecule) is 0.844D (debye), and its percent ionic character is 12.5 % . Estimate the bond length of the H Br bond in picometers. Note that • 1D= 3.34 x 10-30 C .m and • in a bond with 100% ionic character, Q = 1.6 x 10-19 C. Express your answer to two significant figures and include the appropriate units. HA ? r= 5.3 • 1018 pm
Rank the bonds in each set in order of decreasing bond length and decreasing bond strength: (a) Si-F, Si-C, Si-O; (b) N=N, N-N, N=N.
nl X S Write electro X 9 uzdLQYhAS) X GPredict the t X Periodic Tab X b Answered: [ X 0mySigTau x M (no subject) x Electronega ow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take [References] The standard enthalpy of formation for HCI(g) is -92 kJ/mol. Use this and the values for the H-H and Cl-Cl bond energies to estimate the bond strength in HCI. Average Bond Energies (kJ/mol) H H 432 Cl-Cl 239 Bond strength = kJ/mol