A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO,),(aq), until no further precipitation occurs. TH precipitate is collected by filtration, dried, and weighed. A total of 12.18 g PbCl,(s) is obtained from 200.0 mL of the original solution. Calculate the molarity of the Pb(NO,),(aq) solution. concentration: M

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter11: Solutions
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A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO,),(aq), until no further precipitation occurs. The
3.
precipitate is collected by filtration, dried, and weighed. A total of 12.18 g PbCl, (s) is obtained from 200.0 mL of the
original solution.
Calculate the molarity of the Pb(NO,),(aq) solution.
concentration:
M
Transcribed Image Text:A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO,),(aq), until no further precipitation occurs. The 3. precipitate is collected by filtration, dried, and weighed. A total of 12.18 g PbCl, (s) is obtained from 200.0 mL of the original solution. Calculate the molarity of the Pb(NO,),(aq) solution. concentration: M
Expert Solution
Step 1

Given mass of lead (II) chloride =12.18 g

Molar mass of lead (II) chloride = 278.1 g/mol

Number of moles of lead (II) chloride = 12.18/278.1 = 0.0438 mol

Step 2

The balanced chemical equation for the reaction of sodium chloride and lead (II) nitrate can be written as follows:

Pb(NO3)2  +  2NaCl    PbCl2  +  2NaNO3

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