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Approximately how many moles of boron make up 1.20 × 10^24 atoms of boron? A. 7.22 × 10^47 moles B. 6.02 × 10^23 moles C. 5.00 moles D. 1.99 moles

Approximately how many moles of boron make up 1.20 × 10^24 atoms of boron? A. 7.22 × 10^47 moles B. 6.02 × 10^23 moles C. 5.00 moles D. 1.99 moles
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Approximately how many moles of boron make up 1.20 × 10^24 atoms of boron?

A. 7.22 × 10^47 moles

B. 6.02 × 10^23 moles

C. 5.00 moles

D. 1.99 moles

asked
User Sbaechler
by
8.5k points

1 Answer

4 votes
1 mol of anything is 6.02 * 10^23 of that substance
x mol = 1.2 * 10^24

x = 1.2 * 10^24/6.02 * 10^23
x = 1.993 mol.

Answer: D <<<<<======
answered
User Bertold Kolics
by
8.5k points
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