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1/ a sample of gallium contains 3.6*10^24 atoms . What is the mass of this sample ?

1/ a sample of gallium contains 3.6*10^24 atoms . What is the mass of this sample ? A 0.05 B 0.09 C 400 g D 3.0*10^26 g E 4.0*10^31 g 2/ what is the empirical formula for a compound that is 46.16 % carbon , 5.16% hydrogen, 48.68% fluorine ? A C3H4F2 B CHF C CH2F D C2H2F3 E none of the answers

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1) 3.6*10^24 atoms of Ga = 3.6*10^24 / 6.023 * 10^23 = 5.977 mole Ga = 5.977 * 69.723 =... View the full answer

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