Asked by Niko
                How many atoms are there in 7.72 g Si?
Seems easy, but I forgot how to find out. Thanks for the help.
            
        Seems easy, but I forgot how to find out. Thanks for the help.
Answers
                    Answered by
            DrBob222
            
    7.72/atomic mass Si = moles.
Then, there are 6.02 x 10^23 atoms in 1 mole.
    
Then, there are 6.02 x 10^23 atoms in 1 mole.
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