One atom has a mass of 1.79E-23 grams.
One mole of atoms (molar mass) is 1.79E-23 * 6.02E23 = 10.7758 grams.
We're looking for an element that has an atomic mass of 10.7758. The element closest to that is Boron (B) with a mass of 10.81. The answer is boron.
its simple., really.
so. 6.022 x 10^23 atoms in a mole right? so, you multiply the mass of one atom by Avogadro's Number, and you get...... 10.7758 g/mol, which is quite close to molar mass of B, boron.
BTW, is General Chemistry a college class>?
Is the molar mass of the element not 1.79e-23 grams * 6.0225e23 (number of atoms in a mole)?
This should give you the unit grams/mole or molar mass.
The equation amu=grams/mole can be used to find the amu of the element.
If grams = 1.79e-23 and moles = 1/6.0225e23, the amu should equal ~10.78 amu. This is very close to the amu of the element Boron.
Is there a flaw in this answer?