![]() ![]() If you know a substance contains 3.011 × 10 23 particles of the substance, then the moles of substance will be (3.011 × 10 23) ÷ (6.022 × 10 23) = 0.5 molģ.011 × 10 23 helium atoms = 0.5 mol of helium atomsģ.011 × 10 23 sodium ions = 0.5 mol of sodium ionsģ.011 × 10 23 water molecules = 0.5 mol of water molecules The table below gives the moles of each element present in the compound, and also shows us how to calculate the number of atoms of each element present: (n × b) × 6.022 × 10 23 atoms of element YĬonsider n moles of each of these compounds with the general formula XY 2. ![]() The mathematical equation, N = n × N A, can also be used to find the number of atoms of each element in a known amount (in moles) of a compound.įor a compound with the molecular formula X aY b: ![]() The mathematical equation, N = n × N A, can be used to find the number of atoms, ions or molecules in any amount (in moles) of atoms, ions or molecules:
0 Comments
Leave a Reply. |