What is the concentration of 250.0 ml of 0.60 moles of hcl?

To determine what the concentration is, simply concert 250.0 ml into L and then take the number of moles and divide by the number of Litres.

C = n/v = C = 0.60 moles of HCl/0.25 L of HCl = 2.40 M HCl.

The concentration is 2.40 M HCl.