how many atoms of each element are present in five formula units of calcium permanganate?
Ca(MnO4)2
5 Ca
10 Mn
40 O
To determine the number of atoms of each element present in five formula units of calcium permanganate (Ca(MnO4)2), we need to break down the formula and identify the number of atoms for each element.
The formula unit of calcium permanganate consists of one calcium ion (Ca2+) and two permanganate ions (MnO4-).
1. Calcium (Ca):
Each formula unit contains one calcium ion (Ca2+). Therefore, in five formula units, there are 5 * 1 = 5 calcium atoms.
2. Manganese (Mn):
Each permanganate ion (MnO4-) contains only one manganese atom (Mn). Since there are two permanganate ions in one formula unit, there is a total of 2 * 1 = 2 manganese atoms. So, in five formula units, there are 5 * 2 = 10 manganese atoms.
3. Oxygen (O):
Each permanganate ion (MnO4-) contains four oxygen atoms (O). Since there are two permanganate ions in one formula unit, there is a total of 2 * 4 = 8 oxygen atoms. So, in five formula units, there are 5 * 8 = 40 oxygen atoms.
In summary, in five formula units of calcium permanganate, there are:
- 5 calcium atoms
- 10 manganese atoms
- 40 oxygen atoms.
To determine the number of atoms of each element in calcium permanganate (Ca(MnO4)2), we need to first identify the elements present in the compound. Calcium (Ca) and permanganate (MnO4) are the two elements in calcium permanganate.
Now, we can analyze the compound's molecular formula to find the ratio of each element.
Calcium permanganate (Ca(MnO4)2) consists of one calcium atom (Ca) and two permanganate ions (MnO4^-). The permanganate ion (MnO4^-) contains one manganese atom (Mn) and four oxygen atoms (O).
So, in the compound Ca(MnO4)2, we have:
- 1 calcium atom (Ca)
- 2 manganese atoms (Mn)
- 8 oxygen atoms (O) (4 oxygen atoms per permanganate ion)
To find the total number of atoms for each element in five formula units of calcium permanganate, we need to multiply the number of atoms per formula unit by five:
For calcium (Ca):
5 formula units x 1 calcium atom = 5 calcium atoms
For manganese (Mn):
5 formula units x 2 manganese atoms = 10 manganese atoms
For oxygen (O):
5 formula units x 8 oxygen atoms = 40 oxygen atoms
Therefore, in five formula units of calcium permanganate, there are:
- 5 calcium atoms (Ca)
- 10 manganese atoms (Mn)
- 40 oxygen atoms (O)