Calculate the mass percent composition of sulfur in Al2(SO4)3. Calculate the mass percent composition of sulfur in Al2(SO4)3. 28.12 % 42.73 % 35.97 % 9.372 % 21.38 %

The mass percent of sulfur is 28.12% (option 1)

Explanation:

Step 1: Data given

Atomic mass of Al = 26.98 g/mol

Atomic mass of S = 32.065 g/mol

Atomic mass of O = 16.0 g/mol

Step 2: Calculate the molar mass of Al2(SO4)3

In 1 molecule Al2(SO4)3 we have 2 Aluminium atom, 3 Sulfur atoms and 12 oxygen atoms

Molar mass of Al2(SO4)3 = 2*26.98 + 3*32.065 + 12*16 .0

Molar mass of Al2(SO4)3 = 342.155 g/mol

Step 3: Calculate the mass percent of sulfur

In 1 molecule Al2(SO4)3 we have 2 Aluminium atom, 3 Sulfur atoms and 12 oxygen atoms

Mass % sulfur = (3*atomic mass of S/ molar mass of Al2(SO4)3) * 100 %

Mass % sulfur = (3*32.065 / 342.155) * 100%

Mass % sulfur = 28.12 %

The mass percent of sulfur is 28.12% (option 1)

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

the answer is na (sodium)