3. Concentrated H2SO4 is 18.0 M. What volume is needed to make 2.00 L of 1.00 M solution? 4. Concentrated HCI is 12.0 M. What volume is needed to make 2.00 L of 1.00 M solution? 5. A 0.500 M solution is to be diluted to 500.0 mL of a 0.150 M solution. How many mL of the 0.500 M solution are required? 6. A stock solution of 10.0 M NaOH is prepared. From this solution, you need to make 250.0 mL of 0.375 M solution. How many mL will be required?