Thast is one mole. 26.98 grams/per mole is the mass.
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The mass of Avogadro's number of aluminum atoms is equal to the molar mass of aluminum, which is 26.98 grams/mol. This means that Avogadro's number of aluminum atoms has a mass of 26.98 grams.
No. Neutral atoms of each element, including hydrogen, have a unique number of electrons, which is equal to the number of protons in their nuclei. The number of protons is the element's atomic number on the periodic table.
The number of reactants atoms must be equal to the number of products atoms.
Avogadro's number is the number of particles (atoms, molecules, ions, etc.) in one mole of a substance, which is approximately 6.022 x 10^23. Therefore, 1 mole of any substance contains Avogadro's number of representative particles.
Equal amounts of all gases have the same volume at the same conditions.
The gas has molecules that are single atoms, as do the noble gases.