Multiple Choice
How many atoms are present in a sample of pure iron with a mass of 260 g? (The atomic mass of iron = 56 and NA = 6.02 × 1023)
A) 3.9 × 1019
B) 15.4 × 1022
C) 5.8 × 1028
D) 7.7 × 1024
E) 9.6× 1024
Correct Answer:
Verified
Correct Answer:
Verified
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