The ah sol for naf is 82 kj/mol, and the lattice energy is -923 kj/mol. if the hydration enthalpy of sodium is 21 kj/mol more
than the hydration enthalpy of fluoride, what are the hydration enthalpies for the sodium and fluoride ions? use ah sol =-a
hat + ahhydr.
sodium: -841 kj/mol; fluoride: -862 kj/mol
sodium: -431 kj/mol; fluoride: -410 kj/mol
o sodium: -410 kj/mol; fluoride: -431 kj/mol
sodium: -389 kj/mol; fluoride: -410 kj/mol

Which position represents spring in the southern hemisphere? a) b) c) d)

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.