84 mg/ml, or 1680 mg/20 ml
20mL is 0.67628 US fluid ounces.
20mL is about 0.02113 US quarts.
20ml of salt? ml is not the right magnitude here if it is mg than it is not concentrated
1 mg equals how many grams?
20ml equals 4 tsp of liquid.
1000 mg equals 1 gm
1000 mcg equals 1 mg.
1000 mcg equals 1 mg.
8200 mg
45.5ng=mg
a gram equals a thousand milligrams, so 3,000 mg