The ethyl mercaptan, C2H5SH, concentration in a mixture was
determined by shaking a 1.534-g sample with...
50.1K
Verified Solution
Link Copied!
Question
Chemistry
The ethyl mercaptan, C2H5SH, concentration in a mixture wasdetermined by shaking a 1.534-g sample with 60.0 mL of 0.01293 M I2in a tightly stoppered flask:
2C2H5SH + I2 →2C2H5SSC2H5 +2I- + 2H+
The excess I2 was back-titrated with 10.72 mL of 0.01425 MNa2S2O3:
2S2O32- + I2 →S4O62- + 2I-
Calculate the percentage of C2H5SH (FM =62.13 g/mol) in the mixture.
(a) 5.67% (b) 3.32% (c) 1.24% (d) 4.33%
(please show work)
Answer & Explanation
Solved by verified expert
4.1 Ratings (689 Votes)
From the equation of the reaction between Thiosulfate and Iodine shows that 1 mol of Iodine is reduced by 2 moles of Thiosulfate Number of moles of Thiosulfate used for
See Answer
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Zin AI - Your personal assistant for all your inquiries!
