Greetings kvnkst: and welcome to the chemical forums. Thanks for the holiday topical questions. At least, thaks for the for the US, everyone in Canada thinks you're a month late, and everyone in the rest of the world is scratching their heads. Just to let you know, if this is really a homework assignment, we'd like to see you try to solve it yourself first. We don't really like to give compete answers around here. FWIW, I don't know how you're going to complete part 2, I rarely weigh out the food I eat, even less so on holidays.