An ore containing lead carbonate, PbCO3, was analyzed. All of the lead in a 1.836 gram sample was converted to PbSO4(s) using a standard procedure involving treatment with HNO3(aq) followed by treatment with Na2SO4 solution. The lead sulfate which was recovered weighed 333 mg. What is the percent, by weight, of lead in the ore? Hint: You should write out each reaction on paper and work backwards through the reactions.
A) 1.99 %
B) 12.4 %
C) 16.0 %
D) 18.1 %
E) 20.6 %
Correct Answer:
Verified
Q127: When 25.0 mL of sulfuric acid solution
Q128: Lactic acid (HC3H5O3)is a monoprotic acid that
Q129: Vinegar contains acetic acid (HC2H3O2), which is
Q130: Ascorbic acid (Vitamin C, H2C6H6O6)is a diprotic
Q131: A 2.710 g mixture contains CaCl2
Q133: A solid laboratory sample contains two substances,
Q134: The formation of kidney stones is caused
Q135: Most kidney stones are made up of
Q136: The reaction most likely to lead to
Q137: The "hardness ions", Ca2+, Mg2+, Fe2+/Fe3+, which
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