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Boron often forms compounds that do not comply with the octet rule that are termed electron deficient. BF3, whose structure is shown below on the left, is an example of an electron deficient compound. Note that the central boron atom is only surrounded by 6 valence electrons. The resonance structure shown on the right brings all atoms into compliance with the octect rule. Does this Lewis structure make a substantial contribution to the electronic structure of BF3? Explain your answer.
F F F - F/ /B B! !!F F+The exclamation mark is being used in place of a bond on the left structure and a double bond on the right.I don't know if the diagrams will show up well. On the right is B surrounded by three F's with single bonds. On the right is B surrounded by three F's with the bond being double on one F and single with the other two. The one on the right also has a negative charge on top and a positive charge on the bottom. The charges are not placed on the F's but on the molecule as a whole.
What technology or combination of technologies would you recommend for treating the following contaminated air streams?
Calcultate what is the value of enthalpy H reaction If the temperature increased from 35.0 degree celsius to 76 degree celsius and the heat capacity of the calorimeter = 23.3kj/c ? (the molar mass of C2H5OH = 46.07g/mol. )
Determine which flask has the smallest amount of water vapour and which one has greater vapor pressure of H 2 O?
The density of palladium(Pd) is 12.0 g/mL at 20 degree Celsius temperature and the density is 11.0 g/mL 1550 degree Celsius temperature . What is the change in volume (V) if tempreture raises of 4.21 kg Pd from 20°C to 1550°C.
Find the reaction order using a Powell plot or the fractional-life method and also estimate the rate constant
Radioactive radon gas (222Rn) enters an average building at a rate of 5 picocuries per second per square meter of foundation area. Consider a house with a foundation of 400 square meters and a volume of 1000 cubic meters.
Estimate the ratios of the basic and acidic forms of the histidine side chain
What is the empirical formula of the compound if Quantitative analysis of a 5.00-g sample of a gaseous compound yielded the following results: 2.00 g sulfur and 3.00 g oxygen?
Application of Avogadro's law - To evaluate the volume of a gas using Avogadro's Law.
Calculate the number of 5.70m NaOH must be added to 666 ml of a buffer that contains .0205m C2H4O2 and .0260m C2H3NaO2 to increase the ph to 5.75.
Compute the amount of heat essential to fully sublime ninety grams of solid dry ice (CO 2 ) at its temperature of sublimation if it is given that the heat of sublimation for CO 2 = 32.3 kj/mol express your answers in kilojoules?
Using a solution of KMnO 4 has a percent transmittance of 27.3 percent when observed in a 1.15-cm cell at a wavelength of 525 nm. Compute the absorbance of this solution.
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