Answer
Mass of carbon = 4.069 g
Explanation
Given:
Number of atoms = 2.04x10^23 atoms
Required: Mass of carbon
Solution
Step 1: Find the number of moles of carbon
1 mole = 6.022x10^23 atoms
x moles = 2.04x10^23 atoms
Solve for x
x = (2.04x10^23 atoms x 1 mole)/6.022x10^23 atoms
x = 0.339 mol
Step 2: From the moles, calculate the mass of carbon
m = n x M where m is the mass, n is the moles and M is the molar mass of carbon
m = 0.339 mol x 12,011 g/mol
m = 4.069 g
