Question

Calculate molecular mass of Ca(OH)2​

Answer 1

Answer:

The molar mass of calcium hydroxide,

Ca(OH)2, is 74.092 g/mol.

Explanation:

The molar mass of a compound is determined by multiplying the subscript of each element in the formula by its molar mass (atomic weight on the periodic table) in g/mol, and adding the results.

The formula for calcium hydroxide is: Ca(OH)2

Molar Mass Ca(OH)2:

(1×40.078g/mol Ca)+(2×15.999g/mol O)+(2×1.008g/mol H)

=74.092 g/mol Ca(OH)2

Answer 2

Answer:

74.093 g/mol

Explanation:

Add the mass of Ca (found on the periodic table), the mass of 2 oxygens and 2 hydrogens together.

40.078+2(15.999)+2(1.00784)=74.093