The mass fraction of phosphorus in zinc phosphate is?

Molecular formula of zinc phosphate Zn3 (PO4) 2. Zinc phosphate mass = m (Zn) 3 + m (PO4) 2 = 65 * 3 + 95 * 2 = 385 grams. The compound has a mass of 385 and this is 100% of the substance, and the mass of phosphorus is 62 grams and this is X%, hence X = 62 * 100/385; X = 16.10%. The mass fraction of phosphorus in zinc phosphate is 16.1%. Checking our equation; mass fraction of zinc = 195 * 100/385 = 50.64%. Mass fraction of oxygen = 128 * 100/385 = 33.24%. We add mass fractions of all elements 33.24 + 50.64 + 16.1 = 100%, which means that the task was solved correctly.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.