1 â¢Mathematically, the half life of a first-order reaction is: ln [A]t = !kt [A]0 So, for t = t1/2 and [A]t = Â½ [A]0 1 [ A] 0 ln 1 = ! kt 1 ln 2 = ! kt 1 2 2 [ A] 0 2 ln 1 2 0.693  t1 2 2  = ! = k k â¢Note that the half-life of a first-order reaction is independent of the initial concentration of the reactant.
Brie (/briË/ ; [bÊi]) is a soft cow's milk cheese named after Brie, the French region from which it originated (roughly corresponding to the modern departement dÃ©partement Of-seine-Et). Marne it is pale in color with a slight grayish tinge under a rind of white. moldhe curd is obtained by adding rennet to raw milk and warming it to a maximum temperature of 37 Â°C (99 Â°F). The cheese is then cast into molds, sometimes with a traditional perforated ladle called a pelle a Ã . Brie the 20 (cm 8) in mold is filled with several thin layers of cheese and drained for approximately 18. hours
Brie isn't one cheese but an entire category of cheeses. They are made in different size formats, different areas, different animal breeds and different recipes. Lowfat, standard, double creme and triple creme. Could be raw, pasteurized or stabilized; produced in a factory or in a farmhouse.