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4. One hundred ml of 2% acetic acid are needed. How many ml of 5% acetic acid are required to make 100ml of a 2% solution? In a lab, 400ml of a 3% solution is required. Only a 5% solution is available. How much of the 5% solution is needed, and how is the 3% solution prepared? 5. A 30% solution is being used to make 700ml of a 4% solution of hypochlorite. What is the final volume of solute and solvent? 6. A lab procedure requires 280ml of a 4% solution of glacial acetic acid. Only a 20% solution is available. How would you make up the required solution? 7. I need 450ml of a 2% acetic acid solution for a manual dilution of WBCs. Only a 6% solution of acetic acid is available. How would the 2% solution be prepared? 8. A good disinfectant commonly used in the lab is 1% hypochlorite. How would you prepare 350ml of 1% hypochlorite from a 5.6% stock solution? The diluent used is tap water. 9. How would you prepare 650ml of a 5% solution from a stock solution that has a 20% Concentration