help with all please!

Diethyl ether (CH3CH2OCH2CH3) was one of the first chemicals used as an anesthetic. At 34.6C, diethyl ether has a vapor pressure of 760 . torr, and at 13.6C, it has a vapor pressure of 339 torr. What is the H of vaporization for diethyl ether? H of vaporization = kJ/mol An error has been detected in your answer. Check for typos, miscalculations etc. before submitting your answer. 1 item attempt remaining The radius of platinum is 140pm and the density is 21.1g/cm3. Does elemental platinum have a facecentered cubic structure or a body-centered cubic structure? face-centered cubic structure body-centered cubic structure 1 item attempt remaining at type of solid will each of the following substances form? a. quartz network metallic Group 8A molecular Ionic S2Cl2 b. network metallic Group 8A. molecular ionic NH4NO3 c. network metallic Group 8A molecular ionic K d. network metallic Group 8A molecular ionic LiCl e. network metallic Group 8A molecular ionic