Which strength corresponds to a solution where 5 grams of solute is dissolved in 100ml of solution?

To determine the percentage strength of a solution, the formula used is:

[

\text{Percentage Strength} = \left( \frac{\text{mass of solute (g)}}{\text{volume of solution (mL)}} \right) \times 100

]

In this scenario, you have 5 grams of solute dissolved in 100 milliliters of solution. Applying the numbers to the formula:

[

\text{Percentage Strength} = \left( \frac{5 , \text{g}}{100 , \text{mL}} \right) \times 100 = 5%

]

This calculation shows that the solution's strength is 5%, as you are taking the mass of the solute, dividing it by the total volume of the solution, and then multiplying by 100 to express it as a percentage. This method is commonly used in pharmacy practice to indicate the concentration of a solution and is crucial for properly dosing medications.