The molar mass of argon is 39.95 g/mole. What is the mass of a single argon atom?Group of answer choices8.441 × 10 -23 g4.157 × 10 -21 g2.406 × 10 -25 g6.634 × 10 -23 g
Question
The molar mass of argon is 39.95 g/mole. What is the mass of a single argon atom?Group of answer choices8.441 × 10 -23 g4.157 × 10 -21 g2.406 × 10 -25 g6.634 × 10 -23 g
Solution
To find the mass of a single argon atom, we need to use Avogadro's number, which is 6.022 x 10^23 atoms/mole. This number represents the number of atoms in one mole of any substance.
Step 1: We know the molar mass of argon is 39.95 g/mole.
Step 2: We divide the molar mass by Avogadro's number to find the mass of a single atom.
Mass of a single atom = Molar mass / Avogadro's number = 39.95 g/mole / 6.022 x 10^23 atoms/mole = 6.634 x 10^-23 g
So, the mass of a single argon atom is 6.634 x 10^-23 g.
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