ActivitySessionOct2212-3 | Chemical Bond | Covalent Bond

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Using molecular orbitals, describe the electron organization in O22-. By showing the combination of atomic orbitals, describe the bonding in HCl. When 1.00 g of iron metal reacts with excess copper (II) cations, what mass of copper metal forms? The other product of the reaction is iron (II) cations. When 454 g of C3H8 reacts with excess oxygen, carbon dioxide and water are produced. What mass of oxygen is consumed? Provide formulas for the following compounds: lead (IV) actate, tin(IV) oxide,
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  Using molecular orbitals, describe the electron organization in O 22- .By showing the combination of atomic orbitals, describe the bonding in HCl.When 1.00 g of iron metal reacts with excess copper (II) cations, what mass of copper metal forms? Theother product of the reaction is iron (II) cations.When 454 g of C 3 H 8 reacts with excess oxygen, carbon dioxide and water are produced. What mass of oxygen is consumed?Provide formulas for the following compounds: lead (IV) actate, tin(IV) oxide, sodium sulfate, andaluminum phosphate.Isobutyl proprionate is comprised of carbon, hydrogen, and oxygen. When a 1.152 g sample of isobutylpropionate is combusted with excess oxygen, 2.726 g of carbon dioxide and 1.116 g of water areproduced. Determine the empirical formula of isobutyl propionate.Ethylene is comprised of carbon and hydrogen. When a 14 g sample of ethylene is combusted withexcess oxygen, 44 g carbon dioxide and 18 g water are produced. Determine the empirical formula of ethylene. Determine the actual molecular formula of ethylene, which has a molecular mass of 28g/mole.Determine the mass of 7.34 moles of N 2 O 4 and 3.16 x 10 24 molecules of O 2 .Determine the number of moles of Br 2 in a sample with 2.17 x 10 24 atoms of bromine.Thiophene contains carbon, hydrogen, and sulfur. Reaction of thiophene with excess oxygen produces0.0619 moles carbon dioxide, 0.0309 moles water, and 0.0155 moles SO 2 . Determine the empiricalformula of thiophene.  Writing Lewis Dot Structures for Atoms and Monoatomic Ions Key Concept: Only valence electrons are included in Lewis Structure. All valenceelectrons must appear in the structure.Group # # of valence electrons1 12 23 34 45 56 6 7 7 8 8  Determine the number of valence electrons in each of the following:Be Si Cl C OWrite the Lewis Symbol for each of the following:H B C Ne O 2- Li 1+ F 1- Mg 2+   Writing Lewis Structures for Covalent Molecules Key Concept: Each atom in a covalent molecule attempts to attain a noble gas electronconfiguration by sharing electron pairs. This typically means 8 electrons for p block elements and 2 electrons for hydrogen. HF H 2 S PH 3 CH 4    Writing Lewis Structures for Covalent Molecules with Multiple Bonds Key Concept: Multiple pairs of electrons may be shared if needed to fill the octets of all atoms. O 2 N 2  CO Writing Lewis Structures for Larger Molecules Key Concepts: 1. The best skeletal arrangement of elements a) places H atoms around the outer  portions of molecules, b) has no oxygen-oxygen bonds, and c) places the least electronegative atom in the center.2. p-block elements have a preferred number of bonds: Group # # of bonds preferred4 45 36 27 1Write the best Lewis Structure for each of the following. C 2 H 6 N 2 H 4  CO 2 C 2 H 4    HNO 2 H 2 COCH 3 OH CH 3 CO 2 H Number of Bonds and Bond Length Key Concept: Bond strength and bond length depend on the number of bonds. Fill in the following table. Give the bond order and the trend expected through this series forbond length and bond strength (increase or decrease down the series).Number of C-C bonds bond strength bond length
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