Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of the book is paired with a similar one that is not.
The solder once used by plumbers to fasten copper pipes together consists of 67% lead and 33% tin. What is the mass of lead (in grams) in a 1.00-lb block of solder? What is the mass of tin?
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