Question

Find the mass of 100 molecules of chlorine .​

Answer 1

Answer:

This problem is a classic stoichiometry problem. To solve this problem, you want to have your periodic table (to find the molar mass (g/mol) of Cl2), calculator, and Avogadro's number handy. The approach is outlined below:

39.2 " g Cl2" ((1 " mole of Cl2")/(70.9 " g Cl2"))((6.022 * 10^23 "molecules Cl2")/(1 " mole Cl2")) = 3.33 * 10^23 " molecules Cl2"

Answer 2

Answer:

1000 molekyules = 6 + 10 ^44 atms=mass= 10^-21 grams

Explanation: