Standardization of Hydrochloric Acid Solution Answer the concentrations in 3 significant figure. You can use scientific notation using "e". Example: 0.0010 = 1.0e-3 Primary Standard Used: Na2CO3 Formula Mass of 1° standard: 105.99 g/mol %purity of 1° standard: 95% Trial 1 3 1° Standard weight, g 0.1005 0.1001 0.0997 Net volume of HCI, mL 9.30 9.00 8.90 M HCI Average M HCI

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