Respuesta :
Answer:
The molality of copper(II) acetate in the solution is 0.3960 mol/kg.
Explanation:
Mass of copper(II) acetate = 26.4 g
Molar mass of copper(II) acetate = 181.63 g/mol
Moles of copper(II) acetate =- [tex]\frac{26.4 g/mol}{181.63 g/mol}=0.14535 mol[/tex]
Mass of water = 367 g = 367 × 0.001 kg ( 1 g = 0.001 kg)
[tex]Molality(m)=\frac{\text{moles of solute}}{\text{mass of solvent (kg)}}[/tex]
[tex]m=\frac{0.14535 mol}{367\times 0.001 kg}=0.3960 mol/kg[/tex]
The molality of copper(II) acetate in the solution is 0.3960 mol/kg.
