Question

calculate the molar mass of cacl2

Answer 1

Answer:

$\boxed {\boxed {\sf 110.98 \ g/mol}}$

Explanation:

The molar mass is the mass of a substance in grams per mole.

To find it, add the mass of each element in the compound. These masses can be found on the Periodic Table.

The compound given is:

$CaCl_2$

The compound has 1 Ca (calcium) and 2 Cl (chlorine).

 

Mass of Calcium

• The molar mass of calcium is 40.08 g/mol
• There is only one atom of Calcium in CaCl₂, so the number above is what we will use.

Mass of Chlorine

• The molar mass of chlorine is 35.45 g/mol
• There are two atoms of chlorine in CaCl₂, therefore we need to multiply the molar mass by 2.
• 35.45 * 2= 70.9 g/mol

Molar Mass of CaCl₂

• Now, to find the molar mass, add the molar mass of 1 calcium and 2 chlorine.
• 40.08 g/mol + 70.9 g/mol =110.98 g/mol

The molar mass of CaCl₂ is 110.98 grams per mole.