Question

The percent by mass of Ca in CaCl2 is equal to
1. (40/111) x 100
2. (111/40) x 100
3. (3/1) x 100
4. (1/3) x 100

Answer 1

Answer:

(40/111)×100

Here is a bonus Answer✍️✍️

Percent composition by element

Element Symbol Mass Percent

Chlorine Cl 63.888%

Calcium Ca 36.112