Question

The molar mass of calcium is 40.08, oxygen is 16.0, and hydrogen is 1.01. What is the mass of one mole of calcium hydroxide (Ca(OH)2)?

Answer 1

`Ca(OH)_2`


`MM=Molar~mass`


`MM_(Ca(OH)_2)=MM_(Ca)+2*(MM_O+MM_H)`


`MM_(Ca(OH)_2)=40.08+2*(16.0+1.01)`


`MM_(Ca(OH)_2)=40.08+2*(17.01)`


`MM_(Ca(OH)_2)=40.08+34.02`


`\boxed{\boxed{MM_(Ca(OH)_2)=74.1~g/mol}}`