Add the following to 400ml H2O (not from the tap!) 5.4 g Tris base 50.0ml 10X Boric acid (55.0 mg/ml) 2.0ml 0.5M EDTA solution Adjust the final volume to 500ml with additional H2O, transfer to a bottle and label it as you will need this next week. Calculate the molarity of the tris, boric acid and EDTA in the 1X solution (to 2 decimal places).

Add the following to 400ml H2O (not from the tap!) 5.4 g Tris base 50.0ml 10X Boric acid (55.0 mg/ml) 2.0ml 0.5M EDTA solution Adjust the final volume to 500ml with additional H2O, transfer to a bottle and label it as you will need this next week. Calculate the molarity of the tris, boric acid and EDTA in the 1X solution (to 2 decimal places).

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter5: Errors In Chemical Analyses

Section: Chapter Questions

Problem 5.10QAP

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A carefully weighed 280mg Calcium carbonate was used in the standardization of an EDTA solution. Initially, 25mL of the titrant was consumed but only after the addition of another 10mL of the titrant did an endpoint was visible.What is the MW of calcium carbonate?102 g/mol98 g/mL100 g/mL100 g/molWhat is the molar concentration of the standardized EDTA solution?0.08m0.8M0.08N0.08MHow many grams of EDTA (MW: 292 g/mole) is required to prepare 250mL of a 0.025M solution?0.18250.18521.8251.1852
C1. A carefully weighed 280mg Calcium carbonate was used in the standardization of an EDTA solution. Initially, 25mL of the titrant was consumed but only after the addition of another 10mL of the titrant did an endpoint was visible. What is the MW of calcium carbonate? (use C1 as reference)* 102 g/mol 98 g/mL 100 g/mL 100 g/mol What is the molar concentration of the standardized EDTA solution? (use C1 as reference)* 0.08m 0.8M 0.08N 0.08M How many grams of EDTA (MW: 292 g/mole) is required to prepare 250mL of a 0.025M solution?* 0.1825 0.1852 1.825 1.1852
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