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Topic: Mass question  (Read 3100 times)

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Offline IImaybelleII

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Mass question
« on: September 15, 2007, 06:57:47 PM »
Im stuck on this one.. can someone show me step by step on how to solve this please.


Problem: the solder once used by plumbers to fasten copper popes together consists of 67% lead and 33% tin. What is the mass of lead in a 250-g block of solder??
 :-\

Thanks
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Offline Sev

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Re: Mass question
« Reply #1 on: September 15, 2007, 07:14:45 PM »
Step 1: 250g x 0.67 = 167.5g

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Offline IImaybelleII

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Re: Mass question
« Reply #2 on: September 15, 2007, 07:37:00 PM »
Thanks ....I really need a chem tutor..  :(
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