12.7 moles calcium (6.022 X 10^23/1 mole Ca)
7.65 X 10^24 atoms of calcium in 12.7 moles.
1
Ca (NO3)2 So the number of Ca atoms will just be Avogadro's constant, L
This substance contains 4 atoms. Ca = 1. O = 1. H = 2 because H2 means two atoms of the substance it comes after.
7 atoms, like math, if in parenthesis multiple. 2 x 3 = 6 plus one atom of Ca for a total of 7 atoms.
Assuming that the compound is the one that should have been written as Ca(ClO3)2, the answer can be determined by counting in a properly interpreted formula: one Ca, two Cl, and six O for a total of nine.
9 atoms
Ca is calcium, one atom.
The formula is Ca(ClO3)2, so the total number of atoms in the compound is 9.
9
In Ca(ClO3)2 there are one calcium atom, two chlorine atom and six oxygen atom. So total of nine atoms
The number of atoms is 33.
1
Ca (NO3)2 So the number of Ca atoms will just be Avogadro's constant, L
1.34 moles Ca x 6.02x10^23 atoms Ca/mole Ca = 8.07x10^23 atoms of Ca
This compound is calcium nitrate. Each formula unit will contain 9 atoms.
This substance contains 4 atoms. Ca = 1. O = 1. H = 2 because H2 means two atoms of the substance it comes after.
There are 20 protons in a calcium atom. You can find the number of atoms in any element by looking at the atomic number which is in the top right corner of the element's box on the periodic table. e.g. Ca 20 40.078