18.1 g of water (initially at 20 oC) is poured onto 270 g of hot, aluminum metal (initially at 500 oC). Once all of the water has vaporized (and no heat is lost to the surrounding air) what will be the final temperature of the aluminum?

a. MPAl = 660 oC

b. Csolid Al = 24.2 J/mol oC

c. Cliquid Al = 29.3 J/mol oC

d. Cliquid water = 75.3 J/mol oC

e. Cwater vapor = 33.1 J/mol oC

f.ΔHfus water = 6.02 kJ/mol

g.ΔHvap water = 40.67 kJ/mol

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°