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Answer :
Final answer:
The acid solution is likely hydrochloric acid (HCl).
Explanation:
To determine the identity of the acid, we first need to calculate the molarity of the solution. Molarity (M) is defined as the number of moles of solute per liter of solution. Given the density of the solution (1.57 g/ml), we can convert the volume (12.0 m) to mass:
mass = density × volume
mass = 1.57 g/ml × 12.0 ml
mass = 18.84 g
Next, we can calculate the molarity using the given mass (75.0 g) of acid:
Molarity = mass of solute (in grams) / molar mass of solute (in grams/mole) / volume of solution (in liters)
Assuming that 75.0 g of acid corresponds to 1 mole (since the molar mass of hydrochloric acid is approximately 36.5 g/mol), we can calculate the molarity:
Molarity = 75.0 g / 36.5 g/mol / 0.012 L
Molarity ≈ 170 M
This high molarity suggests a strong acid, which is commonly hydrochloric acid (HCl) in such concentrated solutions. Therefore, the identity of the acid is likely hydrochloric acid (HCl).
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