5. For conductometric titration of 10.0 juice, 2.75 cm3 of 0.02000 mol/dm3 of sodium hydroxide solution was used. Find the mass fraction of free acids of juice in terms of citric acid HOOCCH2C(OH)COOHCH2COOH
Answer options:
1) 0.035 2. 0.106 3. 0.053 4. 0.530

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