Chapter 18.3, Problem 15PP

To determine

The formula for calcium chloride.

Answer to Problem 15PP

The formula for calcium chloride is ${\text{CaCl}}_{\text{2}}$ .

Explanation of Solution

Given:

The compound iscalcium chloride.

Calculation:

The compound with the absence of carbon is called inorganic compound. Calcium chloride is a example of inorganic compound. It consists of calcium and chorine and it is very highly soluble in water.

Calcium belongs to the group 2 and it has 2 outermost electrons. Chlorine belongs to group 17 and it has 7 outermost electrons.

Calcium loses 2 electrons to attain the noble gas configuration and chlorine gains 1 electron to attain noble gas configuration.

The electronic configuration of calcium is 2.8.8.2 and chlorine is 2.8.7. Calcium and chlorine are denoted by symbol Ca and Cl. The charge of Ca is -1 and the charge of Cl is +2. Cross multiply the charges and formula is obtained as ${\text{CaCl}}_{\text{2}}$ .

Conclusion:

Thus, the formula for calcium chloride is ${\text{CaCl}}_{\text{2}}$ .