When benzene (C6H6) reacts with bromine (Bra),
bromobenzene (C6H5 Br) is obtained:
C6H6 + Br2...
Chemistry, 20.09.2020 15:01, Kimbeeeerly7631
When benzene (C6H6) reacts with bromine (Bra),
bromobenzene (C6H5 Br) is obtained:
C6H6 + Br2 β C6H5Br + HBr.
PART A: What is the theoretical yield of bromobenzene in this reaction when 26.0 g of benzene reacts with 56.3g of bromine. PART B: If the actual yield of bromobenzene was 49.1g, what was the percentage yield?
Answers: 2
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Chemistry, 22.06.2019 11:40, Wemaybewrong
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) β h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 Β°c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
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