What is the mass of a white tiger?
"White Tigers" aren't a subspecies of Tiger. White fur is a rare variant among most, if not all, big cats. So i cant answer your question directly. However, Bengal tigers weigh up to 300-560 pounds. Siberians weigh up to 300-675 pounds. Sumatrans weigh 170-310 pounds.
Yes, the orange tiger and the White tiger are related; just separated to different places and enviroments. According to the environments and sorrounding relates to it's colour ( eg. a jungle, a blacky orangey colour, snow, a blacky White colour). The white tiger is a Bengal tiger with a genetic flaw that makes them white. Extremely rare in the wild.
A white tiger is not a different species - it is just a tiger that happens to be colored white. Tigers eat a variety of prey ranging in size from termites to elephant calves. However, an integral component of their diet are large-bodied prey weighing about 20 kg (45 lb) or larger such as moose, deer species, pigs, cows, horses, buffalos and goats.