How much elemental iron comes from a 325 mg tablet of iron II sulfate heptahydrate? This important and practical question can be answered based on the percentage of iron in the compound. This Powerpoint presentation builds on the skill of determining the formula mass from the formula. The lesson explains how to determine the percentage of each of the components of a compound or just a specific component using the formula mass of the component compared to the formula mass of the whole. Then, using the percentage, it explains how to figure out the mass of a component in a sample of known mass.
Free worksheets for this topic are available on my website at http://www.evanschemistrycorner.com.