In chemistry, there is a unit of measure called the mole. It represents 6.02x1023 of anything, in the same way that a dozen represents 12 of anything. Look in the text on p.171-178 for help.
Homework: Read p.176, 178; answer p.177 #13, 14, 16-18; answer p.178 #19, 20, 22
Homework: Read p.176, 178; answer p.177 #13, 14, 16-18; answer p.178 #19, 20, 22