Wolfram Alpha

If you have ever wondered:

a) how much Vitamin C is hiding in one apple?
b) how much grams is 1 cup of chocolate chip?
c) how much iron there is in 2 tbsp of Nutella?

look at Wolfram Alpha, new knowledge engine!

Answers:
a) 13%
b) 168g
c) 1,62mg, or 9% of your daily iron intake...not bad Nutella, not bad at all!