2. Atoms & Elements
Mole Concept
2. Atoms & Elements Mole Concept
1PRACTICE PROBLEM
A 1.95 g sample of iron reacts with excess O2 to form 2.79 g Fe2O3. Determine the number of Fe3+ ions per cubic centimeter if the density of Fe2O3 is 5.25 g/cm3.
A 1.95 g sample of iron reacts with excess O2 to form 2.79 g Fe2O3. Determine the number of Fe3+ ions per cubic centimeter if the density of Fe2O3 is 5.25 g/cm3.