kileighrae29 kileighrae29
  • 22-12-2020
  • Chemistry
contestada

If you have 23.8g of CaCl2, how many formula units is it?

Respuesta :

Neetoo
Neetoo Neetoo
  • 22-12-2020

Answer:

1.3×10²³ formula unit

Explanation:

Given data:

Mass of CaCl₂ = 23.8 g

Number of formula unit = ?

Solution:

Number of moles = mass/molar mass

Number of moles = 23.8 g/110.98 g/mol

Number of moles = 0.21 mol

1 mole of any substance contain 6.022×10²³ formula unit

0.21 mol × 6.022×10²³ formula unit / 1mol

1.3×10²³ formula unit

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