Question

if a pharmacist dissolves 1.2 g of a medicinal agent in 60 ml of a cough syrup having a specific gravity of 1.20. w hat is the specific gravity (to 3 decimal places) of the product if the addition of the medicinal agent increases the syrup’s volume by 0.2 ml?

Answer 1

Mass of medicinal agent taken = 1.2 gthe volume is 60 mL Specific gravity = 1.20 So the mass of solution = specific gravity X volume = 1.20 * 60 = 72gNow if we have increased the volume by 0.2 so the new volume = 60.2 New mass = 72 + 1.2 = 73.2 Specific gravity = mass / volume = 73.2 / 60.2 = 1.22 g/mL.