If the open-angle glaucoma is not specified as primary, assign code 365.10. The residual stage of open-angle glaucoma is classified to code 365.15. Assign code 365.01 for open-angle glaucoma with borderline intraocular pressure.
Return to Mole Menu. Percent composition is the percent by mass of each element present in a compound. Water, H2O, is the first example. One mole of water is 18.0152 grams. In that compound, there are two moles of H atoms and 2 x 1.008 = 2.016 grams. That's how many grams of hydrogen are present in one mole of water.
Step 4: Find the mass percent composition of each element. To find the mass percent composition of an element, divide the mass contribution of the element by the total molecular mass. This number must then be multiplied by 100% to be expressed as a percent.Mass percent composition of K = mass contribution of K/molecular mass of K 3 Fe(CN) 6 x 100%.ach element's contribution is expressed as a percentage of the whole. This step by step tutorial will show the method to determine the mass percent composition of a molecule. Example: Calculate the mass percent composition of each element in a potassium ferricyanide, K 3 Fe(CN) 6 molecule.