P Block - Group 14 Questions and Answers

Draw an MO energy diagram for CO Use the energy ordering of O Drag the appropriate labels to their respective targets Labels can be used once more than once or not at all Not all targets will be filled View Available Hint s 02s 4 G1 G1 G1 G1 G2 G2 G2 G2 G2 G2 G2 Reset Help

Draw the Lewis structure for CO2 Draw the molecule by placing atoms on the grid and connecting them with bonds Include all lone pairs of electrons

A o bond arises from the straight on overlap of two at Sigma Bonding orbitals The electron density lies along the axis of the bonded nuclei sp3 hybrid orbital 1s orbital Example Sigma Bonding in methane CH4 What atomic or hybrid orbitals make up the sigma bond between C and C3 propylene CH CHCH3 C is the second carbon in the structure as written orbital on C orbital on C3 What is the approximate C C C3 bond angle O

1 Show the hydrolysis of aspartame using structural formulas a Name the products that are formed b In reference to the products of the reaction which one s can readily undergo oxidation c What is the product s of the oxidation s

HO III H C C CH O Phos OH OH H C CH CH O Phos O

Use the bond energy chart to determine the AH of this reaction C3H8 g 5 O g 3 CO g 4H O g 1 1 a 2010 kJ mol b 2010 kJ mol c 778 kJ mol d 778 kJ mol e 449 kJ mol HO H 60F 005 you ornect to have the strongest lattice energy

Equation 1 Equation 2 E I E I EI EI 4 2 4 4

Bonding A bond arises from sideways overlap of two parallel p orbitals The electron density lies above below a plane containing the 2 nuclei that is perpendicular to the orbitals 8 8 p orbital p orbital atom atom2 bond If an atom has sp3 hybridization in a molecule The maximum number of a bonds that the atom can form is The maximum number of p p bonds that the atom can form is

What is the conjugate acid in the following equation CH3NH2 HSO4 CH3NH3 SO4 CH3NH2 CH3NH3 SO4 2

5 63 From the enthalpies of reaction H g F g 2 HF g C s 2 F g CF4 g 2 C s 2 H g C H g calculate AH for the reaction of ethylene with F C H g 6 F g 2 CF g 4 HF g 5 64 Given the data AH 537 kJ AH 680 kJ AH 52 3 kJ N g O g 2 NO g 2 NO g O g 2 NO g 2 N O g 2 N g O g AH 180 7 kJ AH 113 1 kJ AH 163 2 kJ use Hess s law to calculate AH for the reaction 2486 3 k N O g NO g 3 NO g 155 65 kJ

A polymer produced after converting compound rubber to an elastic and final end use product is said to be a copolymerized b elastomeric c rubberized d vulcanized

I for each shown 1 H C CH CH F 2 H 2 0 3 H N The following draw a resonance structure more stable than the one 2 Rank the following H c N 8 CH3 NH in order of stability Put an x on any non viable H C11 CH H o N 6 CH3 N 0 CH3 N 0 7 CH3

The reaction of propane C3H8 burning has a AH 2 044 kJ mol How much propane in grams must be burned to heat a 4 45kg cast iron pan from 23 0 C to 225 C Cast iron has a specific heat capacity of 0 460 J g C

Which of the following gives the correct electronic configuration for the outermost energy level and subshell for the element tin? 4d6 5s² 40 4d8 5p²

According to Schaie, an individual in the responsible stage is capable of using knowledge to pursue goals. Solving practical problems associated with responsibilities to others. reorganizing his/her life and intellectual energies around meaningful pursuits. acquiring knowledge for its own sake.

In which of the following are both members of the pair polysaccharides containing a-1,4 glycosidic bonds and a-1,6 glycosidic bonds to branches? Glycogen and amylopectin Cellulose and amylopectin Amylose and cellulose Glycogen and amylose I DON'T KNOW YET

A neutral atom has the following electron configuration: [Ne] 3s²3 p² What is the chemical symbol for the atom? How many electrons does the atom have? How many 3p electrons are in the atom?

Mass of copper wire Mass of filter paper + product Mass of filter paper Mass of copper (II) oxide 1. Using your data, calculate how many moles of copper you used in reaction 2. Look carefully at the three reactions you have performed. What is the mole ratio between copper in reaction 1 and the copper (II) oxide produced in reaction 3? Using that information, calculate the theoretical yield of copper (II) oxide using stoichiometry. (Assume copper is the limiting reagent.)

What is the wavelength of an electromagnetic wave that has a frequency of 7.80 x 1014 Hz in a vacuum? (The speed of light in a vacuum is 3.00 × 108 m/s.) A. 1.28% 10^-15 m B. 2.34% 10^23 m C. 2.60% 10^6 m D. 3.85 x 10^-7 m

A gaseous mixture containing 1.5 mol Ar and 3.5 mol CO₂ has a total pressure of 9.5 atm. What is the partial pressure of CO₂? 22 atm 1.8 atm 9.5 atm 6.7 atm 2.9 atm

Ammonia, NH3, reacts with the hypochlorite ion, OCI- to produce hydrazine, N2H4. 2NH3 + OCI- → N2H4 + CI ¯ + H₂O When 3.88 g of NH3 reacts with excess hypochlorite and the percent yield of hydrazine is 72.7%. How many gram of hydrazine is produced?