To calculate the formula units in 292.5 g of sodium chloride (NaCl), we need to know the molar mass of NaCl.
The molar mass of NaCl is calculated by adding the atomic masses of sodium (Na) and chlorine (Cl):
Molar mass of NaCl = (mass of Na) + (mass of Cl)
Molar mass of NaCl = (22.99 g/mol) + (35.45 g/mol)
Molar mass of NaCl = 58.44 g/mol
Now, we can use the molar mass to calculate the number of moles of NaCl:
Number of moles = mass / molar mass
Number of moles = 292.5 g / 58.44 g/mol
Number of moles = 5 moles
Since 1 mole equals 6.02 x 10^23 formula units (Avogadro's number), we can calculate the number of formula units:
Number of formula units = number of moles x Avogadro's number
Number of formula units = 5 moles x 6.02 x 10^23 formula units/mole
Number of formula units = 3.01 x 10^24 formula units
Therefore, there are 3.01 x 10^24 formula units in 292.5 g of sodium chloride.
Calculate formula units in 292.5 g sodium chloride
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