How many molecules are there in 24 grams of FeF3 ? Can somebody please show me how i can get to the answer ? Thank you

mols FeF3 = grams FeF3/molar mass FeF3.

# molecules = mols FeF3 x 6.02E23 molecules/1 mol = ?

To determine the number of molecules in 24 grams of FeF3, we first need to convert the mass given (in grams) to moles using the molar mass. The molar mass of FeF3 can be calculated by adding up the atomic masses of each element in the compound.

Here's how you can calculate the molar mass of FeF3:
- The atomic mass of iron (Fe) is 55.85 g/mol.
- The atomic mass of fluorine (F) is 18.998 g/mol.
Since FeF3 has three fluorine atoms, the molar mass of FeF3 can be calculated as follows:
Molar mass of FeF3 = (1 * atomic mass of iron) + (3 * atomic mass of fluorine)
Molar mass of FeF3 = (1 * 55.85) + (3 * 18.998)
Molar mass of FeF3 = 55.85 + 56.994
Molar mass of FeF3 = 112.844 g/mol

Now that we have the molar mass of FeF3, we can use it to convert the given mass from grams to moles by using the formula:
moles = mass (in grams) / molar mass

In this case, we have:
moles = 24 g / 112.844 g/mol
moles = 0.2128 mol

Finally, we can use Avogadro's number to convert moles to the number of molecules. Avogadro's number is approximately 6.022 x 10^23 molecules/mol.

Hence, the number of molecules in 24 grams of FeF3 is:
number of molecules = moles * Avogadro's number
number of molecules = 0.2128 mol * 6.022 x 10^23 molecules/mol

You can now multiply these values to get the final answer.