49. [Algoríthmíc] A 3.00-g sample of an alloy (containing only Pb and Sn) was dissolved innitric acid (HNO,). Sulfuric acid was added to this solution, which precipitated 2.93 g ofPBSO4. Assuming that all of the lead was precipitated, what is the percentage of Sn inthe sample? (molar mass of PbSO = 303.3 g/mol)a) 33.3% Snb) 17.7% Snc) 50.0% Snd) 66.7% Sne) 2.00% SnANS: a)SECTION: 4.7LEVEL: hard80© Houghton Mifflin Company. All rights reserved.

The question is quantitative estimation of percentage tin present in the given alloy. we calculate…

ric acid was added to this solution, which precipitated 2.93 of the lead was precipitated, what is the percentage of Sn in of PBSO, = 303.3 g/mol) %3D SECTION: 4.7 LEVEL: hard 80 © Houghton Mifflin Company. All rights reserved.

ric acid was added to this solution, which precipitated 2.93 of the lead was precipitated, what is the percentage of Sn in of PBSO, = 303.3 g/mol) %3D SECTION: 4.7 LEVEL: hard 80 © Houghton Mifflin Company. All rights reserved.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter10: Solutions

Section: Chapter Questions

Problem 65QAP: Twenty-five milliliters of a solution (d=1.107g/mL)containing 15.25% by mass of sulfuric acid is...

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Question

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49. [Algoríthmíc] A 3.00-g sample of an alloy (containing only Pb and Sn) was dissolved in
nitric acid (HNO,). Sulfuric acid was added to this solution, which precipitated 2.93 g of
PBSO4. Assuming that all of the lead was precipitated, what is the percentage of Sn in
the sample? (molar mass of PbSO = 303.3 g/mol)
a) 33.3% Sn
b) 17.7% Sn
c) 50.0% Sn
d) 66.7% Sn
e) 2.00% Sn
ANS: a)
SECTION: 4.7
LEVEL: hard
80
© Houghton Mifflin Company. All rights reserved.

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