Answer:
Molarity = 5.52 mol.L⁻¹
Explanation:
Molarity is the amount of solute dissolved per unit volume of solution. It is expressed as,
Molarity = Moles / Volume of Solution ----- (1)
Data Given;
Mass = 250.0 g
Volume = 775 mL = 0.775 L
First calculate Moles for given mass as,
Moles = Mass / M.mass
Moles = 250.0 g / 58.44 g.mol⁻¹
Moles = 4.277 mol
Now, putting value of Moles and Volume in eq. 1,
Molarity = 4.277 mol ÷ 0.775 L
Molarity = 5.52 mol.L⁻¹