= Question 16 (1 point) Remdesivir (C27H35N6O3P, MM = 602.57) is an drug investigated to treat. What is the vapor pressure, in torr, of the solution formed by dissolving 139 g of Remdesivir , a non-electrolyte, in 43.5 g of acetonitrile (C2H3N) at 25 °C? The vapor pressure of pure acetonitrile is 89.3 torr at 25 °C. Assume ideal behavior. (+6 points for submitted work) Your Answer units

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

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.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line