What is the AH sol for LiBr → Li+ + Br-? The lattice energy is -734 kJ/mol, the enthalpy of hydration for Li+ is -499 kJ/mol, and the enthalpy of hydration for Br-is-284 kJ/mol. Use AHsol= -A Hat + hydr.
O 519 kJ/mol
0 -49 kJ/mol
O 49 kJ/mol
1,517 kJ/mol

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm

Consider this initial-rate data at a certain temperature for the reaction described by

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together