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Question:

Help with chemistry question please!?

How many moles of aluminum do 6.3×10^24 aluminum atoms represent? Express your answer using two significant figures.please help me i cant figure it out! thanks

Answer:

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1 mole 6.02 x 10^23 atoms Divide 6.3 x 10^24 by 6.02 x 10^23 10.465 Round to two sig figs 10.

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