The common Eastern mole, a mammal, typically has a mass of 72 g, which correspon

Question

The common Eastern mole, a mammal, typically has a mass of 72 g, which corresponds to about 7.2 moles of atoms. (A mole of atoms is 6.02 x 1023 atoms. In atomic mass units (u), what is the average mass of atoms in the common Eastern mole?

So do i need to just go from Mass to atoms? i only know how to do this using chemistry and that is with molecular weights... can i simply

7.2moles x 6.022x10^23 = 4.34x10^24 atoms
so how do i put this into U - the atomic mass unit?
and atomic mass units = 1.66x10^-27 kg


Help... thnaks The common Eastern mole, a mammal, typically has a mass of 72 g, which corresponds to about 7.2 moles of atoms. (A mole of atoms is 6.02 x 1023 atoms. In atomic mass units (u), what is the average mass of atoms in the common Eastern mole?

So do i need to just go from Mass to atoms? i only know how to do this using chemistry and that is with molecular weights... can i simply

7.2moles x 6.022x10^23 = 4.34x10^24 atoms
so how do i put this into U - the atomic mass unit?
and atomic mass units = 1.66x10^-27 kg


Help... thnaks

Explanation / Answer

let, no.of atoms = 7.2 moles * 6.022* 10 23    = 4.34 * 10 24 .......................approx. average mass = 72 g / 4.34 *10 24    = 16.589 * 10 -24 g / atom    = 16.589 * 10 -27 kg / atom    = 16.589 * 10 -27 / [1.66 * 10 -27 ] (u)    = 9.99 u   

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