7. a) Define a standard solution. Describe how you would prepare 0.5M Na-CO: solution using a 250 volumetric flask and use it to determine the concentration of hydrochloric acid. Your description should go as far as collection of data b) In one of such experiment, 25.0cm of 0.5M Na-CO; completely neutralized 50.0cm of the solution of dilute hydrochloric acid. Calculate the molarity of the acid solution in mol/dm³

7. a) Define a standard solution. Describe how you would prepare 0.5M

1.	7. a) Define a standard solution. Describe how you would prepare 0.5M Na-CO: solution using a 250 volumetric flask and use it to determine the concentration of hydrochloric acid. Your description should go as far as collection of data b) In one of such experiment, 25.0cm of 0.5M Na-CO; completely neutralized 50.0cm of the solution of dilute hydrochloric acid. Calculate the molarity of the acid solution in mol/dm³
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