Chem molarity help pls! 20 points! ( 3 questions )
1. A 25.0 mL sample of concentrated HCl (12.0 M) is diluted to a final volume of 750.0 mL. Calculate the molarity of the final solution.

2. Calculate the volume (mL) of concentrated HNO3 (15.8 M) that should be used to prepare 250.0 mL of a 0.400 M solution.

3. Calculate the volume of water (in mL) that must be added to 150 mL of 0.600 M HCl solution to give a 0.450 M HCl solution.