1 G/ kg of body weight? Depends on your weight too. I just take 50g and think i'm ok, along w/ 80g of dextrose.
Why wouldn't you take the dextrose and whey together? Wont it function more optimally considering you'll have an insulin spike, thus increasing more absorption?
Whey only keeps you anabolic for about 1 hour. After that it may leave you more catabolic than you were before. So be careful w/ it, and add stuff to it only at night to slow absorption like Flaxseed oil, fiber, milk, etc.