Calculate the vapor pressure of water above a solution prepared by dissolving 28.5g of glycerin (c3h2o3) in 125g of water at 343k. (the vapor pressure of water is 233.7 tor). (b) calculate the mass of ethylene glycol (c2h602) that must be added to 1.00 kg of ethanol (c2hoh) to reduce its vapor pressure by 10.0 torr at 35 °c. the vapor pressure of pure ethanol at 35°c is 1.00*102 torr.

Which is a character of nuclear fusion but not nuclear fission

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

Which type of fossil does this image depict?