Question

How to make a 10 mL saturated potassium oxalate solution

using the potassium oxalate Mw = 184.23 g mol-1 and the Solubility of potassium oxalate in water at 25°C = 360 mg mL-1

Answer 1

Solubility of potassium oxalate in water at 25°C = 360 mg mL-1

1 mL of saturated solution at 25°C contains ----> 360 mg

10 mL of saturated solution at 25°C contains ----> (360*10)/1

                                                                           = 3600 mg

To prepare 10 mL of satuarated potassium oxalate solution we have to dissolve 3600 mg or 3.6 g of the Compound in water and make up the solution to 10 mL.