1) determine molar mass of K₃PO₄
[tex]=3(39.10)+30.97+4(16)\\=212.27\ g/mol[/tex]
2) determine total mass of potassium atoms in K₃PO₄
[tex]=3(39.10)\\=117.3\ g[/tex]
4) divide by molar mass and multiply by 100
[tex]=\frac{117.30}{212.27}[/tex] × [tex]100[/tex]
= 55.25981062% (round as you wish)
