A liquid medication has a concentration of 0.5 g/100 mL. How many grams are in 450 mL?

To determine how many grams of medication are in 450 mL when the concentration is 0.5 g per 100 mL, it's essential to first establish how the concentration scales with volume.

The concentration of 0.5 g/100 mL means that for every 100 mL of the solution, there are 0.5 grams of the medication. To find out how many grams are in 450 mL, you can set up a ratio or use a simple calculation:

1. Calculate how many 100 mL units are in 450 mL. This can be done by dividing 450 mL by 100 mL:

450 mL ÷ 100 mL = 4.5

2. Since each 100 mL contains 0.5 grams, you can now multiply the number of 100 mL units by the grams per unit:

4.5 units × 0.5 g/unit = 2.25 g

Thus, the total amount of medication in 450 mL is 2.25 grams, which confirms why the correct answer is indeed 2.25 g. Understanding the basic relationship between concentration, volume, and mass is crucial in