Describe the relationship between an atomic mass unit and a gram (10 pts). b. Calculate the number of moles of silicon in a 37.0 g sample of orthoclase (KAlSi3O8), a mineral used in the manufacture of porcelain (10 pts). c. Calculate the number of moles of nitrogen in a 22.4 g sample of nitroglycerin (C3H5N3O9) that contains 18.5% nitrogen by mass (10 pts)