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A NAOH solution with an approximate concentration of 0.1 mol / L was produced in the laboratory. In order to obtain the exact concentration of this solution, its standardization was carried out, using a standard solution of oxalic acid (0.05 mol / L) and phenolpholine as an acid base indicator. The data obtained with the standardization were: H;C_0, + NaOH - Na* + C,0;- + H,0 Va = 10.00 mL, volume of NaOH solution added to the flask; Pv = 11.77 mL, spent volume of standard solution; Pv = 0.05, concentration of the standard solution; The unbalanced reaction of the system is shown below: From the data that was presented, answer: a) What is the real value of the concentration of NaOH (Ca). Present all the calculations and explanations necessary to arrive at the Ca value. b) Explain in a succinct way all the steps, experimental apparatus and necessary care to carry out a standardization experiment in the laboratory, based on the data presented in the statement

A NAOH solution with an approximate concentration of 0.1 mol / L was produced in the laboratory. In order to obtain the exact concentration of this solution, its standardization was carried out, using a standard solution of oxalic acid (0.05 mol / L) and phenolpholine as an acid base indicator. The data obtained with the standardization were: H;C_0, + NaOH - Na* + C,0;- + H,0 Va = 10.00 mL, volume of NaOH solution added to the flask; Pv = 11.77 mL, spent volume of standard solution; Pv = 0.05, concentration of the standard solution; The unbalanced reaction of the system is shown below: From the data that was presented, answer: a) What is the real value of the concentration of NaOH (Ca). Present all the calculations and explanations necessary to arrive at the Ca value. b) Explain in a succinct way all the steps, experimental apparatus and necessary care to carry out a standardization experiment in the laboratory, based on the data presented in the statement

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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H2C2O4 + NaOH ➙ Na+ +C2O42- + H2O

 

A NAOH solution with an approximate concentration of 0.1 mol / L was produced in the laboratory. In order to obtain the exact concentration of this solution, its standardization was carried out, using a standard solution of oxalic acid (0.05 mol / L) and phenolpholine as an acid base indicator. The data obtained with the standardization were: HạC_0̟ + NaOH - Na* + C,0;- + H20 Va = 10.00 mL, volume of NaOH solution added to the flask; Pv = 11.77 mL, spent volume of standard solution; Pv = 0.05, concentration of the standard solution; The unbalanced reaction of the system is shown below: From the data that was presented, answer: a) What is the real value of the concentration of NaOH (CA). Present all the calculations and explanations necessary to arrive at the CA value. bl) Explain in a succinct way all the steps, experimental apparatus and necessary care to carry out a standardization experiment in the laboratory, based on the data presented in the statement
Transcribed Image Text:A NAOH solution with an approximate concentration of 0.1 mol / L was produced in the laboratory. In order to obtain the exact concentration of this solution, its standardization was carried out, using a standard solution of oxalic acid (0.05 mol / L) and phenolpholine as an acid base indicator. The data obtained with the standardization were: HạC_0̟ + NaOH - Na* + C,0;- + H20 Va = 10.00 mL, volume of NaOH solution added to the flask; Pv = 11.77 mL, spent volume of standard solution; Pv = 0.05, concentration of the standard solution; The unbalanced reaction of the system is shown below: From the data that was presented, answer: a) What is the real value of the concentration of NaOH (CA). Present all the calculations and explanations necessary to arrive at the CA value. bl) Explain in a succinct way all the steps, experimental apparatus and necessary care to carry out a standardization experiment in the laboratory, based on the data presented in the statement
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