Question: how many atoms are present in one mole of ca(oh)2?
Answer: For example, in Ca(OH)2 we have only one Ca atom. For Ca(OH)2 there are a total of 5 atoms in the compound. To find the number of atoms in one mole of Ca(OH)2 we multiply the number of each atom (for example there are two oxygen atoms) by Avogadro's number, 6.02 x 10^23.