1. What is the percent by mass of 8.0 g of iron (II) (FeSO4) sulfate dissolved in 75.0 g of water (H2O)?
2. What is the percent by volume of a solution formed by mixing 25 mL of isopropanol with 45 mL of water?

3. Concentrations of a solution is like you concentrating to your dreams. How would you show your competence and perseverance in terms of focusing to your goals in life?

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