The given parameter states 250mg/5ml, this means for every 1 ml, the patient takes 50mg, hence for every 4ml the patient will take 200mg
Density of amoxicillin = 250mg/5ml amoxicillin
= 50mg/ml
Mass of amoxicillin the patient will take for each 4ml volume
Mass = Density*Volume
Mass = 50*4
Mass = 200mg
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