he limiting reactant

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Metal piece conforms
to shape of nose
4. Potassium superoxide, KO2, is used in rebreathing gas masks to
generate oxygen:
Exhalation
Strap
4 KOH (aq) + 3 O2 (g)
ports
4 KO2 (s) + 2 H2O (I)
Suppose a reaction vessel contains 0.25 mol KO2 and 3.0 g H2O.
a) Determine the limiting reactant by calculating the moles of O2
that can be formed by each reactant.
From oxygen
source
b) Calculate the theoretical yield of O2 in grams.
c) If the reaction actually produces 4.7 g of O2, what is the percent yield?
Transcribed Image Text:Metal piece conforms to shape of nose 4. Potassium superoxide, KO2, is used in rebreathing gas masks to generate oxygen: Exhalation Strap 4 KOH (aq) + 3 O2 (g) ports 4 KO2 (s) + 2 H2O (I) Suppose a reaction vessel contains 0.25 mol KO2 and 3.0 g H2O. a) Determine the limiting reactant by calculating the moles of O2 that can be formed by each reactant. From oxygen source b) Calculate the theoretical yield of O2 in grams. c) If the reaction actually produces 4.7 g of O2, what is the percent yield?
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