Calculate the strength of a solution

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Q1. There are 70 grams of a drug dissolved in 140 milliliters of a solution. What is the strength of this solution expressed as a fraction, a ratio, and a percent?

Recall that the strength of these solutions compares the amount of drug (solute) in the solution to the volume of solution. It is calculated using the formula:
Strength: ((Amount of Drug (Solute))/(Amount of Solution))

Q2. Suppose 40 mL of an iodine solution contains 10 mL of (solute) pure iodine. Express the strength of this solution as a ratio, a fraction, and a percentage.
Source: Dosage Calculations: A Multi-Method Approach, 2e. Giangrasso & Shrimpton
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