Question

A dermatologist prescribes Drysol as a treatment for excessive underarm sweating. Drysol contains 15g of aluminum chloride hexahydrate in 84 mL of an alcohol base. What is the final strength of Drysol? (Round to the nearest hundredths w/v).

Answer 1

The final strength of Drysol is approximately 17.86% w/v.

Step-by-step explanation:

The final strength of Drysol can be calculated by dividing the amount of aluminum chloride hexahydrate by the total volume of the solution and multiplying by 100. In this case, the amount of aluminum chloride hexahydrate is 15g and the total volume of the solution is 84 mL. So the final strength of Drysol is:

(15g / 84mL) * 100 = 17.86% w/v

Therefore, the final strength of Drysol is approximately 17.86% w/v.