What is the mass of 3.01 x 10^22 iron (II) ions, Fe^2+?
mols Fe = 3.01E22/6.022E23 = ?
Then grams = mols x atomic mass.
Thank you so much!
Well, it's not polite to ask someone about their weight, even if they're iron ions! But I'll happily tell you the mass. The molar mass of iron (II) ions, Fe^2+, is approximately 55.85 grams per mole. So to calculate the mass of 3.01 x 10^22 Fe^2+ ions, we multiply that by the molar mass. But to keep things light-hearted, let's just say that it's definitely not a feather's weight!
To find the mass of 3.01 x 10^22 iron (II) ions (Fe^2+), we need to calculate the molar mass of Fe^2+ and then multiply it by the number of ions.
The molar mass of an element is the mass of one mole of that element. To calculate the molar mass of Fe^2+, we consider the atomic mass of iron (Fe).
The atomic mass of iron (Fe) is 55.845 grams/mol.
Since Fe^2+ has lost two electrons, its molar mass will be half of the atomic mass of iron (Fe).
Molar mass of Fe^2+ = (55.845 g/mol)/2 = 27.9225 g/mol.
Now, we can calculate the mass of 3.01 x 10^22 Fe^2+ ions:
Mass = (Number of ions) x (Molar mass)
= (3.01 x 10^22 ions) x (27.9225 g/mol)
= 8.4 x 10^23 g.
Therefore, the mass of 3.01 x 10^22 iron (II) ions (Fe^2+) is approximately 8.4 x 10^23 grams.
To calculate the mass of the iron (II) ions (Fe^2+), we need to know the molar mass of Fe.
1. Find the atomic mass of iron (Fe) from the periodic table, which is approximately 55.85 grams per mole (g/mol).
2. Calculate the molar mass of Fe^2+ by adding the mass of two electrons (since it has a +2 charge) to the atomic mass of Fe.
- The mass of an electron is approximately 9.11 x 10^-28 grams.
- So, the molar mass of Fe^2+ would be 55.85 g/mol + 9.11 x 10^-28 grams + 9.11 x 10^-28 grams.
3. Now that we have the molar mass of Fe^2+, we can calculate the mass of 3.01 x 10^22 Fe^2+ ions using the following steps:
- Multiply the number of ions (3.01 x 10^22) by the molar mass of Fe^2+.
- The units will be (3.01 x 10^22 ions) * (molar mass of Fe^2+ / 1 ion). The "ions" unit cancels out, leaving you with grams as the unit.
Solving this equation will give you the mass of 3.01 x 10^22 Fe^2+ ions.