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July 30, 2015

Homework Help: chemistry

Posted by jaz on Tuesday, March 10, 2009 at 7:19pm.

Mole and Particle practice
How many representative particles (atoms, ions, molecules, etc) are present in each of the following?
1) 4.3 mol of tungsten
2) 2.45 * 10-6 mol nickel (II) selenide (NiSe)
3) 0.923 mol of selenium tetrabromide (SeBr4)
How many moles are equivalent to each of the following?
4) 7.95 * 1024 copper (II) chloride
5) 6.93 * 1023 thallium atoms
6) 1.974 * 1014 sodium chloride formula

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