The molar mass of argon is 39.95 g/mole. What is the mass of a single argon atom?

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: Identify the given values. Molar mass of Argon (Ar) = 39.95 g/mole Avogadro's number = 6.022 x 10^23 atoms/mole

Step 2: Use the given values in the formula to find the mass of one atom. The formula to find the mass of one atom is: Mass of one atom = Molar mass / Avogadro's number

Step 3: Substitute the given values into the formula. Mass of one Ar atom = 39.95 g/mole / 6.022 x 10^23 atoms/mole

Step 4: Perform the calculation. The mass of one Ar atom = 6.633 x 10^-23 g/atom

So, the mass of a single argon atom is approximately 6.633 x 10^-23 grams.