Make a 50 ml agarose gel of 0.8% that is 0.5x tbe. the tbe (tris fw = 121.1, borate fw = 61.8, edta fw w = 372) stock is 10x. you have a 150x stock of buffer and you need 2.5 ml of 1x. how do you make this? you have a dna solution that is 21.3 mu g/mu_1 and you want 75 mu 1 that is 50 mu g/mu 1. how do you make this? make 350 ml of a solution that is 25 mm tris, 2.5 mm edta, and the ph is 8.0. tris is a base and the fw of tris is 121.1 and edta is 187. do not make a volume that exceeds 350

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.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

Mercury turns to vapor at 629.88 k how much heat is lost 175 g of mercury vapor at 650 current condenses to a liquid at 297 ca mercury turns to weber at 629.88 kelvin how much he is lost 175 g of mercury vapor and 650 coming condensers to liquidate 297 kevin