Hydrogen peroxide (H2O2) decomposes catalytically in the presence of metal ions and enzymes called peroxidases. You may have noticed this reaction occurring if you use a drugstore solution of hydrogen peroxide as a mouthwash or antiseptic. If a 250 mL bottle of hydrogen peroxide solution containing 3.0% H2O2 (by mass) completely decomposes, how many liters of oxygen gas would it generate? Assume that 1 mol of gas occupies a volume of 22.4 L and that the density of the solution is 1.0 g/mL. The reaction is
2H2O2(aq) 2H2O(l) + O2(g)
A) 2.5 L
B) 4.9 L
C) 9.9 L
D) 7.4 L
E) 0.22 L
Correct Answer:
Verified
Q61: An iron ore, magnetite, contains only iron
Q63: Copper was the first metal to be
Q64: Baking ammonia or ammonium bicarbonate (NH4HCO3, 79.1
Q67: A compound known to contain platinum, nitrogen,
Q69: Metallic copper can be obtained from the
Q70: Which molecules shown below have the same
Q73: Arizona was the site of a 400,000-acre
Q74: An intermetallic titanium compound is used for
Q75: The most abundant metal in Earth's crust
Q77: Elemental analysis of the soot produced by
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents