I am not sure if this is right or not and if so is it the expected results as as
ID: 476921 • Letter: I
Question
I am not sure if this is right or not and if so is it the expected results as asked in question 3?1. Balance the following reaction equation. I: I NaBr aq. H2SO4 Br 2. Complete the following table, using your actual measured amounts. Greyed-out cells do not need to be filled. MW(g/mol) conc (M) d (g/mL) vol. (mL) mass (mg) mmol equiv 0.810 74.12 1-butanol sulfuric acid sodium bromide 102.89 Water 1-bromobutane 137.02 250.5 1,83 3. Describe the results of your chemical tests: a) Pinkelstein sodium iodidelacerone) test: White .Pwler flekey recipitate (positive No precipitate b) AgNO, test
Explanation / Answer
1-butanol + NaBr / H2SO4 --------> 1-Bromo butane
1 mole of 1-butanol reacts with 1 mole of NaBr and produces 1mole of 1-Bromo butane
So
10.9 mmol of 1-butanol reacts with 10.9 mmol of NaBr and produces 10.9 mmol of 1-bromo butane
Limiting reagent = 1-Butanol
Mass of 1-bromo butane = 10.9*10^-3*137.02 = 1.493 gms [MW of product =137.02]
% yield = Actual yield *100 / Theoritical yield = 0.2505*100 / 1.493 = 16.77 %
3]
The product fromed is 1-bromobutane
AgNO3 rxn with product ---> No precipitate
confirms the presence of Chlorine or bromine
Product with NaI/Acetone ----> white powder flaky precipitate
Confirms the presence of Bromine group
So the product is a bromoalkane
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.