cindy slade asked 3/15/2011 Calculate the energy in joules/photon of the red line in Calcium spectrum with wave length of 6573 A?
cindy slade asked 2/14/2011 Nitroglycerin (C3H5N3O9) is a powerful explosive. Its decomposition is C3H5N3O9=6N2+12CO2+10H2O+O2. What is the number of O2 molecules from 2 x 10^2 grams of nitroglycerin? What is the % yield if 6.55 grams of O2 were collected?
cindy slade asked 2/8/2011 An alcohol is 60% carbon, 13.33% hydrogen and 26.67% oxygen. A.) what is the simplest molecular formula? B.) by another method, the molecular weight was found to be 60. What is the molecular formula
