The molar mass of sodium chloride (NaCl) is 58.44 g/mol.
To calculate the number of formula units in 29.5 g of sodium chloride, you need to convert grams to moles using the molar mass.
moles = mass / molar mass
moles = 29.5 g / 58.44 g/mol
moles ≈ 0.5051 mol
Since one mole of NaCl contains 6.022 x 10^23 formula units (Avogadro's number), you can calculate the number of formula units in 0.5051 mol:
formula units = moles x Avogadro's number
formula units = 0.5051 mol x 6.022 x 10^23
formula units ≈ 3.041 x 10^23
Therefore, there are approximately 3.041 x 10^23 formula units in 29.5 g of sodium chloride.
Calculate formula units in 29.5 g sodium chloride
1 answer