What volume of benzene (C6H6, d= 0.88 g/mL, molar mass = 78.11 g/mol) is required to produce 1.5 x 103 kJ of heat according to the following reaction?
Chemistry - DrBob222, Monday, July 6, 2009 at 5:06pm
The reaction you show is for two moles benzene. Since the molar mass is 78.11 g/mole, then 2 moles is 2 x 79.11 = 156.22 grams. Thus 156.22 g benzene will produce 6278 kJ of heat. You want to produce 1500 kJ. Use proportions to determine the mass of benzene needed, then use density = mass x volume to convert to volume. Post your work if you get stuck.
Chemistry - Gweedo8, Monday, July 6, 2009 at 6:33pm
THank you problem solved
Chemistry - anonymous, Tuesday, December 11, 2012 at 10:35pm
actually density=mass divided by volume