A sample is known to contain NaOH (MM 40.02), Na₂CO3 (MM 105.79), NaHCO, (MM 84.01) or a compatible mixture of these, together with some Inert matter. 2.000 g sample was dissolved in water making 100.0 mL solution. A 25.00 mL aliquot of this solution required 47.50 mL of 0.1800 M HCI to reach the methyl orange endpoint. A duplicate aliquot sample required 30.00 ml of the acid to reach the phenolphthalein endpoint. Identify the components of this mixed carbonates and calculate the percentage of the corresponding components in the sample.

A sample is known to contain NaOH (MM 40.02), Na₂CO3 (MM 105.79), NaHCO, (MM 84.01) or a compatible mixture of these, together with some Inert matter. 2.000 g sample was dissolved in water making 100.0 mL solution. A 25.00 mL aliquot of this solution required 47.50 mL of 0.1800 M HCI to reach the methyl orange endpoint. A duplicate aliquot sample required 30.00 ml of the acid to reach the phenolphthalein endpoint. Identify the components of this mixed carbonates and calculate the percentage of the corresponding components in the sample.

Chemical Principles in the Laboratory

11th Edition

ISBN:9781305264434

Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Chapter24: The Standardization Of A Basic Solution And The Determination Of The Molar Mass Of An Acid

Section: Chapter Questions

Problem 3ASA: A 0.3012g sample of an unknown monoprotic acid requires 24.13mL of 0.0944MNaOH for neutralization to...

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