Question

Calculate the formula unit mass of
CaC12​

Answer 1

atomic mass of clacium =40

atomic mass of cholrine (2) =35.5*2=71.

formula unit mass of

CaCl2=40+71=111g

Answer 2

Given :

• Find the unit mass of CaCl2.

Know terms :

• Calcium → Ca.
• Chlorine → Cl.

Calculations :

→ Atomic mass of Ca + (2) Atomic mass of Cl.

→ Ca -> 40

→ Cl -> 35.5

→ 40 + (2) 35.5

→ 40 + 71

→ 111 u

Therefore, 111 u is the unit mass of CaC12.

SOME OTHER ELEMENTS FOR SYMBOL.

1. Aluminum - Al.
2. Argon - Ar.
3. Barium - Ba.
4. Boron - B.
5. Bromine - Br.
6. Calcium - Ca.
7. Carbon - C.
8. Chloride - Cl.
9. Cobalt - Co.
10. Copper - Cu.