Answer:
116.88g of table salt (NaCl) contains two formula units
Explanation:
Now,
We know that 1 formula unit of sodium chloride has a molar mass of 58.44g/mol
Hence;
Mass of 1 formula unit = 58.44g
Mass of x formula units = 116.88g
x = 116.88g * 1 formula unit/58.44g
x = 2 formula units
Therefore;
116.88g of table salt (NaCl) contains two formula units
Answer:
There are 1.2044 × 10²⁴ formula units of NaCl in 116.88 g of table salt (NaCl)
Explanation:
A formula unit is an empirical formula of the smallest collection or number of atoms in an ionic or covalent combination from which a compounds formula can be established and which are used to represent the compound stoichiometrically
Sodium chloride is an ionic compound and is represented by the formula unit NaCl as it composed of ions and is not therefoe represented by a molecular formula
The given mass of the table salt, NaCl = 116.88 g
The molar mass of NaCl = 58.44 g/mol = The mass of 1 mole of NaCl
1 mole of NaCl contains one Avogadro's number or 6.022 × 10²³ formula units of NaCl,
∴ 58.44 g of NaCl contains 6.022 × 10²³ formula units of NaCl
116.88 g of NaCl will have (116.88/58.44) × 6.022 × 10²³ = 1.2044 × 10²⁴ formula units of NaCl
The number of formula units of NaCl in 116.88 g of table salt (NaCl) = 1.2044 × 10²⁴ formula units of NaCl.
