2. Exprese en mg/ml los siguientes porcentajes: 0.5 %, 80%, 9%, 22.5%.

0.5% = 0.5g/100mL= 0.005g/ml1g--------1000mg0.005-----XX= (0.005g/ml) (1000mg) = 5 mg/ml 1g

80%= 80g/100ml= 0.8g/ml1g----------1000mg0.8g/ml----XX= (0.8g/ml) (1000mg) = 800mg/ml 1g

9% = 9g/100ml= 0.09mg/ml1g------------1000mg0.09g/ml-----XX= (0.09g/ml) (1000mg) = 90 mg/ml 1g 22.5%= 22.5g/100ml= 0.225mg/ml1g-------------1000mg0.09mg/ml----XX= (0.225mg/ml) (1000mg) = 225mg/ml 1g