Lexan is a plastic used to make compact discs, eyeglass lenses, and bullet-proof glass. One of the compounds used
to make Lexan is phosgene (COCl2), a poisonous gas.
Phosgene is produced by the reaction
CO(g) 1 Cl2(g) 34 COCl2(g)
for which K 5 4.5 3 109 at 100.8C.
a. Calculate Kp at 100.8C.
b. Equal moles of CO and Cl2 are reacted at 100.8C. If
the total pressure at equilibrium is 5.0 atm, calculate
the equilibrium partial pressures of all the gases.

it is the most commonly accepted one

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally