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Ariana1717

Answer:

You can view more details on each measurement unit: molecular weight of CaCl2 or grams This compound is also known as Calcium Chloride. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CaCl2, or 110.984 grams.

Eduard22sly

The number of mole in 3.9 g of calcium chloride, CaCl₂, is 0.0351 mole.

The mole of a substance is related to it's mass and molar mass according to the following equation:

Mole = mass / molar mass

With the above formula, we can obtain the number of mole in 3.9 g of calcium chloride, CaCl₂. This can be obtained as follow:

Mass of CaCl₂ = 3.9 g

Molar mass of CaCl₂ = 40 + (35.5×2) = 111 g/mol

Mole of CaCl₂ =?

Mole = mass / molar mass

Mole of CaCl₂ = 3.9 / 111

Mole of CaCl₂ = 0.0351 mole

Therefore, the number of mole in 3.9 g of CaCl₂ is 0.0351 mole.

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