What volume of a 0.08 %w/v solution would contain 0.2 g of drug?
Question
What volume of a 0.08 %w/v solution would contain 0.2 g of drug?
Solution
To solve this problem, we need to understand what %w/v means. It stands for "weight/volume", and it is a measure of concentration. In this case, 0.08% w/v means that there are 0.08 grams of drug in every 100 mL of solution.
Step 1: Convert the percentage to a decimal. 0.08% = 0.08/100 = 0.0008 g/mL
Step 2: Find out how many grams are in 1 mL of solution. 1 mL of solution contains 0.0008 g of drug.
Step 3: Find out how many mL of solution would contain 0.2 g of drug. 0.2 g ÷ 0.0008 g/mL = 250 mL
So, 250 mL of a 0.08% w/v solution would contain 0.2 g of drug.
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