How many atoms of chlorine in 13 g of mgcl2

Answer:95.211 grams are in mgcl2

Explanation: Since one mole of MgCl2 consists of one mole of magnesium and two moles of chlorine, the mass of one mole of MgCl2 must be the sum of the masses of the elements. To calculate the number of atoms in a sample, divide its weight in grams by the amu atomic mass from the periodic table, then multiply the result by Avogadro's number: 6.02 x 10^23.

If there are 2 chlorine atoms per molecule then I think that the answer is 26 chlorine atoms.