Question

Determining limiting reactant and percent yield Since this is our first synthesis experiment, this is a good place to review how to identify the imiting reactant and calculate the percent yield. I'll use some sample data to illustrate the process. CH CH2 HC OH HC H C CI CH CH t-butyl alcohol Density 0.7809 g/mL Conc. 0.42 g/mL MM-92.52 g/mol MM-79.2 g/mol Hydrochloric acid -butyl chloride MM-36 g/mol A student starts withmL of hydrochloric acid and-S mL t-butyl alcohol. She recoveredg of t-butyl chloride. What was her percent yield? This is a stoichiometry problem. It's exactly the same as we did in general chemistry.

Answer 1

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M_wt 874 36 82 wt 10 ml con: 0.42 g/ml 35 ml 5.13 g density: 0.7809 wt: 35 times 0.42 g 0.0625 moles wt 7.809 gr: 0.408 mols g(eq) 3.86(eq) % yield = product mole/reactant moles = 0.0625/0.1055 times 100 = 59.24% therfore here the limiting agent is the test butanol and the HCL was used exexass i.e 3.86 eq the % yield of reaction is 59.24% based on limiting agent