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How many grams of Cl are in [tex]365 \, \text{g} \, \text{CaCl}_2[/tex]?

Mass: [tex]\square \, \text{g}[/tex]

Sagot :

GinnyAnswer
To find out how many grams of Cl are in 365 grams of CaCl₂, we have to follow these steps:

1. Determine the molar masses:
- The molar mass of Calcium (Ca) is 40.08 g/mol.
- The molar mass of Chlorine (Cl) is 35.453 g/mol.

2. Calculate the molar mass of CaCl₂:
- The formula for CaCl₂ indicates one calcium atom and two chlorine atoms.
- Molar mass of CaCl₂ = Molar mass of Ca + 2 Molar mass of Cl
- Molar mass of CaCl₂ = 40.08 g/mol + 2 35.453 g/mol
- Molar mass of CaCl₂ = 110.986 g/mol

3. Calculate the mass percentage of Cl in CaCl₂:
- There are two moles of Cl in one mole of CaCl₂.
- Mass of Cl in one mole of CaCl₂ = 2 35.453 g/mol = 70.906 g
- Mass percentage of Cl in CaCl₂ = (Mass of Cl in one mole of CaCl₂) / (Molar mass of CaCl₂)
- Mass percentage of Cl in CaCl₂ = 70.906 g / 110.986 g
- Mass percentage of Cl in CaCl₂ ≈ 0.6389 (or 63.89%)

4. Find the mass of Cl in 365 g of CaCl₂:
- Mass of Cl = Mass percentage of Cl in CaCl₂ Total mass of CaCl₂
- Mass of Cl = 0.6389 * 365 g
- Mass of Cl ≈ 233.19 g

Therefore, in 365 grams of CaCl₂, there are approximately 233.19 grams of Chlorine (Cl).

The mass of Cl in 365 g of CaCl₂ is [tex]\( \boxed{233.19 \text{ g}} \)[/tex].
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