In the compound zinc sulfate heptahydrate calculate the mass percent of water

The answer to your question is 43.9%

Explanation:

Data

ZnSO₄ 7H₂O

percent of H₂O

Process

- Calculate the molar mass of the molecule

molar mass of ZnSO₄ 7H₂O = 65 + 32 + (14 x 1) + (11 x 16)

                                              = 287g

molar mass of H₂O = (2 x 1) + 16 = 18 g x 7 = 126 g

- Calculate the mass percent of water

                          287 g 100%

                          126 g   x

                           x = (126 x 100)/287

                          x = 43.9 %                        

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.