Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter21: The Chemistry Of The Main Group Elements
Section: Chapter Questions
Problem 86GQ: In 1774, C. Scheele obtained a gas by reacting pyrolusite (MnO2) with sulfuric acid. The gas, which...
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Question
1)How many outer-shell electrons do each of the atoms have? Rn Ga C
Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide.
4HCl(aq)+MnO2(s)⟶MnCl2(aq)+2H2O(l)+Cl2(g)
A sample of 42.1 g MnO2 is added to a solution containing 49.9 g HCl.
What is the limiting reactant?
MnO2 or HCl
2) What is the theoretical yield of Cl2?
theoretical yield:
3) If the yield of the reaction is 80.5%, what is the actual yield of chlorine?
actual yield:
4) For the
2H2O2(l)+N2H4(l)⟶4H2O(g)+N2(g)
determine how many grams of N2 are produced from the reaction of 8.06 g of H2O2 and 5.39 g of N2H4.
N2 produced:
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