What mass of sulfur hexafluoride SF6?

Question

has the same number of fluorine atoms as 25.0 g of oxygen difluoride, OF2?

Answer 1

I'll do this question in steps to keep it simple.

Step one: Convert grams of oxygen difluoride to moles oxygen difluoride.
All we need to do is find the molar mass of OF2, and divide 25g by it.
Fluorine has a molar mass of 19 g/mol, and oxygen has a molar mass of 16 g/mol. So, OF2 has a molar mass of 54 g/mol (16 + (2 x 19)).
25g divided by 54 g/mol equals 0.463 moles of OF2.

Step 2: Convert moles of OF2 to moles of fluorine atoms.
We just multiply by two, since each OF2 molecule has two fluorine atoms in it. So, we have 0.926 moles of fluorine atoms in 25g of OF2.

Step 3: Work out the number of moles of sulfur hexafluoride (SF6) required to equal this amount.
We divide 0.926 by 6, since every SF6 molecule contains 6 atoms of fluorine. This means we need 1/6 of the amount we would otherwise.
0.926 / 6 = 0.154 moles SF6

Step 4: Convert moles of SF6 into grams of SF6 using the molar mass of the compound.
Sulfur on its own has a molar mass of 32 g/mol. Fluorine, as before, has a molar mass of 19 g/mol.
So, SF6 has a molar mass of 146 g/mol (32 + (6 x 19)).
Then we just multiply the molar mass of SF6 by the number of moles we need. 146 g/mol x 0.154 mol equals 22.484g of sulfur hexafluoride.

So, 22.484g of sulfur hexafluoride has the same number of fluorine atoms as 25.0g of oxygen difluoride.

Answer 2

Sulfur Hexafluoride Molar Mass

Answer 3

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RE:
What mass of sulfur hexafluoride SF6?
has the same number of fluorine atoms as 25.0 g of oxygen difluoride, OF2?

Answer 4

Step-by-step, to make things clearer

Convert 25.0 g OF2 to moles OF2 (you do this by dividing by the molar mass of OF2)

convert moles OF2 to moles F by multiplying by two

Convert moles F to moles SF6 by dividing by six

Convert moles SF6 to g SF6 by multiplying by the molar mass of SF6.

That's all!

Answer 5

izia.
1st of all.I Don't know wat is sulfur hexafluoride.