Question

A patient needs 0.024 g of a sulfa drug. There are 12-mg tablets in stock. How many tablets should be given?

Answer 1

I would personally convert the 12 mg to g so I could see what I was working with. So 12 mg to grams is 0.012 g...

so 1 tablet is 0.012g. the patient needs 0.024 g. 

so 0.024g/0.012g = 2 tablets or 0.012g X 2 is 0.024 g

hope this helps :)

Answer 2

Answer : The number of tablets given should be, 0.5

Explanation :

We are given :

Mass of sulfa drug for a patient = 0.024 g

Total mass of tablets = 12 mg = $12\times 10^{-3}g=0.012g$

(Conversion factor: 1 g = 1000 mg)

To calculate the number of tablets, we divide the total mass of tablets to the mass of sulfa drug for a patient.

$n=\frac{\text{Total mass of tablets}}{\text{Mass of sulfa drug for a patient}}$

Putting values in above equation, we get:

$n=\frac{0.012g}{0.024g}\\\\n=0.5$

Hence, the number of tablets given should be, 0.5