Use patterns to change the unit.
500ml = blank l
4.05 g = blank mg
To change the unit from milliliters (ml) to liters (l), you need to use the conversion factor that says 1 liter is equal to 1000 milliliters.
So, to convert 500 ml to liters, divide 500 by 1000:
500 ml / 1000 = 0.5 l
Therefore, 500 ml is equal to 0.5 liters.
Now, let's change the unit from grams (g) to milligrams (mg). The conversion factor you need to use is that 1 gram is equal to 1000 milligrams.
To convert 4.05 g to milligrams, multiply 4.05 by 1000:
4.05 g * 1000 = 4050 mg
Therefore, 4.05 g is equal to 4050 milligrams.