3 x 6.02E23 molecules.
Calcium bicarbonate has the chemical formula Ca(HCO₃)₂. In two moles of calcium bicarbonate, there are 2 moles of calcium (Ca), 4 moles of hydrogen (H), and 4 moles of oxygen (O). Therefore, the total number of atoms is 2 (Ca) + 4 (H) + 4 (O) = 10 atoms per two moles of calcium bicarbonate.
12.7 moles calcium (6.022 X 10^23/1 mole Ca) 7.65 X 10^24 atoms of calcium in 12.7 moles.
The number of moles of calcium carbonate are 3.5 moles. , there are 1 mole of calcium (Ca) atom, 1 mole of carbon (C) atom and 3 moles of oxygen (O) atoms.
Ca (NO3)2 So the number of Ca atoms will just be Avogadro's constant, L
2 moles of Ca and 4 moles of OH
1.34 moles Ca x 6.02x10^23 atoms Ca/mole Ca = 8.07x10^23 atoms of Ca
In Ca(HCO3)2, there are 2 moles of carbonate ions (CO3^2-), each containing 3 atoms. So there are 6 atoms in 1 molecule of Ca(HCO3)2. Therefore, in 4 moles of Ca(HCO3)2, there are 4 x 6 = 24 moles of atoms.
There are 0.18 moles of Ca2+ ions in 0.18 moles of CaF2.
To determine the number of moles of calcium atoms in 45.8 g of Ca, first find the molar mass of calcium (Ca) from the periodic table (40.08 g/mol). Then, divide the given mass by the molar mass of Ca to get the number of moles. In this case, 45.8 g of Ca is equal to 1.14 moles of Ca atoms.
0.50 moles CaCO3 (1 mole Ca/1 mole CaCO3)(6.022 X 1023/1 mole Ca)= 3.0 X 1023 atoms of calcium===================
Calcium bicarbonate has the chemical formula Ca(HCO₃)₂. In two moles of calcium bicarbonate, there are 2 moles of calcium (Ca), 4 moles of hydrogen (H), and 4 moles of oxygen (O). Therefore, the total number of atoms is 2 (Ca) + 4 (H) + 4 (O) = 10 atoms per two moles of calcium bicarbonate.
To determine the number of moles of calcium atoms in 98.5 g of Ca, you need to first calculate the molar mass of Ca (40.08 g/mol). Then, divide the given mass by the molar mass to get the number of moles. So, 98.5 g of Ca is equal to 98.5 g / 40.08 g/mol ≈ 2.46 moles of Ca atoms.
In 1.5 moles of CaCl2, you would have 3 moles of ions or atoms of calcium and 3 moles of ions of chloride. Since CaCl2 dissociates into 1 calcium ion (Ca2+) and 2 chloride ions (2Cl-), this means you would have 3 moles of calcium ions and 6 moles of chloride ions in total.
25.0 moles Ca x 6.02x10^23 atoms/mole = 1.50x10^25 atoms
12.7 moles calcium (6.022 X 10^23/1 mole Ca) 7.65 X 10^24 atoms of calcium in 12.7 moles.
3.8 grams calcium (1 mole Ca/40.08 grams) = 0.09 moles calcium ==============
The number of moles of calcium carbonate are 3.5 moles. , there are 1 mole of calcium (Ca) atom, 1 mole of carbon (C) atom and 3 moles of oxygen (O) atoms.