The label on a can of lemonade gives the volume as 12 fl oz ,or 355 ml . verify the these two measurements are nearly equivalent.

12 fl oz and 355 ml are nearly equivalent. Proof is shown below.

1 fluid ounce is equivalent to 29.5735 millilitre
                  
                  29.5735 ml
12 fl oz  x  = 354.882 rounded to the nearest ones will be 355 ml.
                   1 fl oz

OR

1 millilitre is equivalent to 0.033814 fluid ounce

                 0.033814 fl oz
355 ml   x   =  12.00397 or 12 fl oz.
                       1 ml

12 fl oz and 355 ml are nearly equivalent.

There is no association.