Question

calculate the number of grams of magnesium in 50g of magnesium sulfide. Use percentage composition and gravimetric factor.

Answer 1

Answer:

50 gram of MgS contains =21.56 gram of Mg

Explanation:

Molecular mass of MgS is 56.37 g/mol.

Atomic mass of 1 mole Mg is 24.305

Therefore 56.37 gram of MgS contains 24.305 gram of Mg

                  1   gram of MgS contains $\frac{24.305}{56.37}$ gram of Mg

                  50 gram of MgS contains  $\frac{24.305}{56.37}$  ×50 gram of Mg

                                                             =21.56 gram of Mg