how many tons are present in 4.0 mol of nickel metal? a.2.4110^24 b.24.110^24 c.2.4110^23 d.2.4110^22

Question

Question

how many tons are present in 4.0 mol of nickel metal?

a.2.41*10^24

b.24.1*10^24

c.2.41*10^23

d.2.41*10^22

Answer 1

Answer #1

how many atoms ( i think it is written as tons , by mistake, in the ques) are present in 4 mole of ni metal?

answer : As we know that ,

1 mole of a substance = avagadro number of atoms or entities of that substance .

avagadro number = 6.022 x 1023

so, 1 mole of Ni = 6.022 x 1023 atoms of Ni

therefore , 4 moles of Ni = 6.022 x 1023 x 4

= 24.08 x 1023 = 2.408 x 1024

= 2.41 x 1024 (approximately)

so the correct answer is a

Answer 2

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how many tons are present in 4.0 mol of nickel metal? a.2.41*10^24 b.24.1*10^24 c.2.41*10^23 d.2.41*10^22