What mass ( g ) of the solvent water should be combined with 223.0mL of the solu

Question

What mass ( g ) of the solvent water should be combined with 223.0mL of the solute HCO2H to produce a solution that is1.14 m HCO2H.


Molar Mass (g/mol) HCO2H 46.03 H2O 18.015 Density ( kg/m3 ) HCO2H 1220 H2O 998.2 Name/Formula formic acid HCO2H water H2O What mass ( g ) of the solvent water should be combined with 223.0mL of the solute HCO2H to produce a solution that is1.14 m HCO2H.


Molar Mass (g/mol) HCO2H 46.03 H2O 18.015 Density ( kg/m3 ) HCO2H 1220 H2O 998.2 Name/Formula formic acid HCO2H water H2O

Explanation / Answer

No. of moles of solute = volume x density / molar mass = 0.006moles                    Molality of solution = 1.14 m                Therefore, mass of solvent = 0.006/1.14 kgs = 5.18 gms                  So, 5.18 gms water is to be added.

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