Thursday
November 20, 2014

Homework Help: Chemistry

Posted by Hannah on Sunday, December 4, 2011 at 1:26pm.

1) How many miles are covered in a 15km race? (1 mile=5280, 12 in=1 ft, 1in=2.54cm)

I know that I have to convert but I do not know where to start.

2) Silver (107.87amu) has two naturally occuring isotopes. In a typical sample, 51.84%of silver exists as Ag-107 (106.9051 amu). Calculate the atmoic mass of the other isotope.

I was going to set it up like this

(.5184 * 106.9051) + (x * 107.87) but I dont think this will work.

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