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Question: part b from last question if the 405g sample is...

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Part B from last question: If the 40.5-g sample is remelted at 13 C, what quantity of energy is required to convert it to liquid?
This question has multiple parts. Work all the parts to get the most points. Considering only the molecular orbitals formed by combinations of the 2s atomic orbitals, how many molecular orbitals can be formed by 7800 Li atoms? molecular orbitals In the lowest energy state, how many of the molecular orbitals formed by 7800 Li atoms will be populated by pairs of electrons? molecular orbitals In the lowest energy state, how many of the molecular orbitals formed by 7800 Li atoms will be empty? molecular orbitals
p-xylene, Co H4(CHs)2,is an organic liquid that freezes at 13 °C. a How much energy is evolved as heat when 40.5 g of p-xylene freezes at 13 C? The enthalpy of p-xylene melting is 17.1 kJ/mol. Energy- kJ
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