1. Write the balanced chemical equation for the reaction of NazS2O3 and HCl in aqueous solution. 2. Consider the following experiment. Twenty mL of a 1.00 M HCl solution is added to 100 mL of a 0.100 M aqueous solution of sodium thiosulfate. After 40 seconds, the reaction has produced enough sulfur to cause a decrease in the percent transmittance to 90%T. If this reaction is repeated using 0.05 M sodium thiosulfate, how long should it take for the reaction mixture to give a 90%T reading if the reaction is first order with respect to Na2S2O3? Second order? Third order? Explain.
1. Write the balanced chemical equation for the reaction of NazS2O3 and HCl in aqueous solution. 2. Consider the following experiment. Twenty mL of a 1.00 M HCl solution is added to 100 mL of a 0.100 M aqueous solution of sodium thiosulfate. After 40 seconds, the reaction has produced enough sulfur to cause a decrease in the percent transmittance to 90%T. If this reaction is repeated using 0.05 M sodium thiosulfate, how long should it take for the reaction mixture to give a 90%T reading if the reaction is first order with respect to Na2S2O3? Second order? Third order? Explain.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Transcribed Image Text:1. Write the balanced chemical equation for the reaction of Na2S2O3 and HCl in aqueous solution.
2. Consider the following experiment. Twenty mL of a 1.00 M HCl solution is added to 100 mL
of a 0.100 M aqueous solution of sodium thiosulfate. After 40 seconds, the reaction has
produced enough sulfur to cause a decrease in the percent transmittance to 90%T. If this
reaction is repeated using 0.05 M sodium thiosulfate, how long should it take for the reaction
mixture to give a 90%T reading if the reaction is first order with respect to Na2S2O3? Second
order? Third order? Explain.
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