Answered

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A doctor prescribes 125 mg of penicillan to be taken 4 times each day. The
concentration of the solution given to the patient is 250mg penicillan/5ml. How
many mL should the patient take in each dose?
1) 500 mL
2) 10.0 mL
3) 2.50mL
4) 50.0 mL
5) 2.0 mL

Sagot :

ardni313

10 ml should the patient take in each dose

Further explanation

Given

125 mg of penicillan ⇒ 4 times/day

The concentration = 250 mg/5 ml

Required

The volume of the dose

Solution

The mass of penicillan/day :

= 125 mg x 4 times

= 500 mg

The volume/day :

= 500 mg : 250 mg/5 ml

= 10 ml

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