A sample of sodium contains 3.01 x 10^23 atoms. What is the mass of the sample?

To determine the mass of the sample containing 3.01 x 10^23 atoms of sodium, we need to start with the concept of the mole, which is a fundamental unit in chemistry used to quantify the number of particles, such as atoms or molecules. One mole of any substance contains Avogadro's number of particles, which is approximately 6.022 x 10^23.

First, we can calculate the number of moles of sodium present in the sample. By dividing the number of sodium atoms by Avogadro's number, we obtain the number of moles:

Number of moles of sodium = (3.01 x 10^23 atoms) / (6.022 x 10^23 atoms/mole) ≈ 0.5 moles.

Next, we need to know the molar mass of sodium (Na), which is approximately 22.99 g/mole. To find the mass of the sodium sample, we then multiply the number of moles by the molar mass:

Mass of sodium sample = (0.5 moles) * (22.99 g/mole) ≈ 11.5 g.

Therefore, the mass of the sample containing 3.01