Final Answer:
To prepare 3.05 L of 0.485 M HCl solution, you would need to take 1.48 L of concentrated HCl solution.
Step-by-step explanation:
The formula for Molarity (M) is M = (moles of solute) / (liters of solution).
Rearranging the formula to solve for moles of solute, we get moles of solute = M × liters of solution.
Given Molarity (M) as 0.485 M and liters of solution as 3.05 L, calculate moles of solute: 0.485 mol/L × 3.05 L = 1.48225 mol.
Convert moles to liters of concentrated solution using its Molarity. If the concentrated solution is also HCl with the same Molarity, you would need 1.48 L of the concentrated solution (assuming 100% efficiency in the dilution process).
Therefore, to prepare 3.05 L of 0.485 M HCl, you would need to take 1.48 L of concentrated HCl solution.