Question

Calculate the total number of ions in 11.1 g of calcium chloride. [Ca=40 u, Cl=35.5 u] ​

Answer 1

Answer:

answer is:3. mole

Explanation:

molecular weight=111g

ion in one cacl2=3ion

so we have

6.02×10^23 molecules

so no. of ions = 3×6.02×10^23 ion=3 moles

Answer 2

Answer: Molar mass of CaCl2 = 40 + 2 x 35.5 = 111 g

111g = 1mole

111g of CaCl2 = 6.022* 10^23 atoms

11.1g of CaCl2 = 6.022 * 10^22 atoms

No. of ions in CaCl2 = 1+2 = 3

No. of ions in 11.1g of CaCl2 = 3 * 6.022* 1022  = 3moles