By definition, a mole of any substamce contains 6.022142 x 1023 molecules. This constant, known as the Avogrado constant, is how we convert atomic weight to grams. If you know the atomic weight of, say, oxygen is 15.9994, then one mole of oxygen weighs 15.9994 grams. Anyway, one mole of NaHCO contains 6.022142 x 1023 molecules, but each molecule contains four atoms (one each of Sodium, Hydrogen, Carbon, and Oxygen). So the total number of atoms in a mole of NaHCO is 4 x 6.022142 x 1023 = 2.408857 x 1024.
To find the moles of NaHCO3 in a 3.00 g sample, first calculate the molar mass of NaHCO3 (84.01 g/mol). Then, divide the mass of the sample by the molar mass to obtain the moles of NaHCO3. For this sample, 3.00 g / 84.01 g/mol ≈ 0.036 moles of NaHCO3 are present.
4.2 moles of CS2 contain 8,4 moles sulfur.
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.
1. Three moles of sodium contain 18,06642387.1023 atoms. 2. The mass of three moles of sodium is 68,97 grams.
NaHCO3 has 3 atoms (the subscript number of O) in 1 molecule, so .... in two molecules ....., you see
Divide 6.10 (g NaHCO3) by 84.007 (g.mol−1 NaHCO3) to get 0.0726 mol NaHCO3
To find the moles of NaHCO3 in a 3.00 g sample, first calculate the molar mass of NaHCO3 (84.01 g/mol). Then, divide the mass of the sample by the molar mass to obtain the moles of NaHCO3. For this sample, 3.00 g / 84.01 g/mol ≈ 0.036 moles of NaHCO3 are present.
To find the moles of NaCl formed from NaHCO3, we need to consider the stoichiometry of the reaction. The balanced equation is: 2 NaHCO3 -> Na2CO3 + H2O + CO2 Therefore, for every 2 moles of NaHCO3, we get 1 mole of NaCl. Therefore, 3.25 moles of NaHCO3 would produce 1.625 moles of NaCl.
0.0845 moles of tungsten is equal to 0,50887.10e23.
For this you need the atomic (molecular) mass of NaHCO3. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. NaHCO3=84.0 grams110 grams NaHCO3 / (84.0 grams) = 1.31 moles NaHCO3
4,37.10e-18 C atoms are equivalent to 7,25.10e-6 moles.
4,80 moles of Fe contain 28,9062761136.10e23 atoms.
1. Three moles of sodium contain 18,06642387.1023 atoms. 2. The mass of three moles of sodium is 68,97 grams.
2 moles of benzene gives 12 moles of hydrogen atoms since benzene is C6H6
five
There are 2.21 x 10^24 atoms of phosphorus in 3.65 moles of phosphorus triiodide.
3KNO3, so 9 oxygen atoms.