Answer:
26.7% is the percent composition by mass of sulfur in a compound named magnesium sulfate.
Explanation:
Molar mass of compound = 120 g/mol
Number of sulfur atom = 1
Atomic mass of sulfur = 32 g/mol
Percentage of element in compound :
[tex]=\frac{\text{Number of atoms}\times \text{Atomic mass}}{\text{molar mas of compound}}\times 100[/tex]
Sulfur :
[tex]=\frac{1\times 32 g/mol}{120 g/mol}\times 100=26.7\%[/tex]
26.7% is the percent composition by mass of sulfur in a compound named magnesium sulfate.
