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(a) Write a single Lewis structure for SO3, and determine the hybridization at the S atom.
(b) Are there other equivalent Lewis structures for the molecule?
(c) Would you expect SO3 to exhibit delocalized π bonding? Explain.
If 80 {rm J} of heat are added to a pure gold coin with a mass of 13 {rm g}, what is its temperature change? Specific heat capacity of gold is 0.128 rm J/g ^circ C.
The flow-through fraction in ion exchange chromotography of amino acids in which a cation exchange resin was used is expected to contain mainly
A sample of hydrogen gas occupies 15.8 L at STP. How many moles of the gas are present?
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6 (g)+ H2 (g) -> 2CH4
ch3chnh3cooh ch3chnh3coo- ch3chnh2coo- write the full chemical equation upon the addition of naoh to each of the 3
Draw a structure showing four water molecules bonded to a central water molecule by means of hydrogen bonding. Explain why the pressure of the atmosphere decreases with increasing altitude
A sample of a real gas acts more like an ideal gas when the volume is increased at constant temperature. Why does this happen. 1) The molecules are farther apart, so the attractive or the repulsive are less of a factor.
N2(g) + O2(g) 2NO(g) If more NO is added bringing its concentration to 0.800 M define what will the final concentration of NO be after equilibrium is re-established
Why does an atomic absorption instrument not need a high resolution monochromator, but an atomic emission instrument does
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 268 {rm torr}. Pure pentane and hexane have vapor pressures of 425 {rm torr} and 151 {rm torr}, respectively, at room temperature. What i..
A container with a removable partition contains gas A and gas B. Gas A is at 400K and 10.0 atm and gas B is at 400K and 4.00 atm. The partition is removed and the gases mix.
pure liquid octane d 0.709 gml is used as the fuel in a test of a new automobile drive train. how much energy in kj is
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