BIOL 1201 Chapter : Bio 1201
Document Summary
Molecular weight- the sum of the atomic masses for all the atoms in a molecule. For example, h20 = (1x2) + 16 = 18 daltons. 2 hydrogens with atomic mass of 1, 1 oxygen with atomic mass of. O11 atomic mass 16 x11 = 176 total molecular weight 342 da (daltons) daltons is an obscure type of measurement convert daltons to grams. Gram molecular weight- the mass of a substance equal to its molecular weight in grams. Moles and molar concentrations (measured in moles per liter) 1 mole = the mass of a substance equal to its gram molecular weight. 1 molar solution = a solution containing 1 mole of a substance per 1 liter of solution. How much nacl do you need in a liter to make a 1 molar solution. Cl = 35. 45 grams per mole total 58. 45 grams per mole. 58. 45 g/mol x 1 mol/l (mols cancel) = 58. 45 g/l.
