Solution for problem 6 Chapter Lesson 28
Try tasting something while having your nose plugged and your eyes closed. You may wish
Living by Chemistry | 2nd Edition
Try tasting something while having your nose plugged and your eyes closed. You may wish to work with a partner who can provide you with a variety of diff erentfl avored jelly beans or other food items to sample. a. Describe your experience. How diffi cult is it to taste something when you cant smell it and you dont know what it is? b. How do you think taste is related to smell?
Friday, September 2, 2016 Chemical Reactions and Stoichiometry Part 2 The AMU - 1 amu = 1.6605 x 10^-24 mass of proton = 1.0073 amu • • mass of neutron = 1.0087 amu • Approximately: the mass of an atom in amu is just the sum of the number of protons and neutrons of the mass number AMU is a convenient deﬁnition of mass for single atoms • The Mole - Process of counting the number of atoms in macroscopic quantities (grams) - 1 nuclear particle ≈ 1 amu ≈ 1.6605 x 10^-24 g - 1 nuclear particle/1.6605 x 10^-24 g = 6.022x10^23 nuclear particles/1 gram - 6.022 x 10^23 = 1 mol of particles - Avogadro’s number N A - Mole counting number similar to dozen, particular number of things in a mol is arbitrary, simply chosen for convenience - Mol always counts