1. Calculate the molar mass of NaCl:
* Sodium (Na) has a molar mass of 22.99 g/mol.
* Chlorine (Cl) has a molar mass of 35.45 g/mol.
* The molar mass of NaCl is 22.99 g/mol + 35.45 g/mol = 58.44 g/mol
2. Convert grams of NaCl to moles:
* Moles = (grams of NaCl) / (molar mass of NaCl)
* Moles = 29.22 g / 58.44 g/mol = 0.5 mol
3. Use Avogadro's number to calculate the number of molecules:
* Avogadro's number is 6.022 x 10^23 molecules/mol
* Number of molecules = (moles of NaCl) * (Avogadro's number)
* Number of molecules = 0.5 mol * 6.022 x 10^23 molecules/mol = 3.011 x 10^23 molecules
Therefore, there are approximately 3.011 x 10^23 molecules of sodium chloride in 29.22 grams of NaCl.
