Question

Number of atoms prosent in 3 moles of iron is a) 6.0323 x 10power f23o C, 12.04 6×10power of ²3b, le 069x10 d, None​

Answer 1

Explanation:

Given that, weight of iron =2.8 g

Atomic mass= 56

moles of iron=

atomic mass

wt. of iron

=

56

2.8

=0.05 moles

1 mole =6.022×10

23

atoms

0.05 moles =6.022×0.05×10

23

atoms=3.0115×10

22

atoms

Option C is correct.

Answer 2

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