Describe, in detail, how to make 3.0 liters of a 3.5 molar HCl solution from an 18.5 molar HCl stock solution. How do you get the 0.57 L?

C1V1=C2V2,

where C is concentration and V is volume,

so let say C1=18.5M, V1=?,

C2=3.5M, V2=3.0L,

now solve for V1, in this case V1=0.57L, so in order to make a 3.0L solution we will need to take 0.57L of stock HCl and add 2.43L of water.