Question

3) Molecular mass of 2 moles of CaO is...
A) 56u
B) 112u
C) 6.022 x 10
D) 2 x 6.022 x 10"​

Answer 1

Answer:

I think option B) 112u..

Answer 2

The atomic mass of calcium is = 40 u

The atomic mass of oxygen is=16

so, 2 mole of CaO

= 2(40+16)

=2(56)

=112u

So the answer is 112u option B

Hope this helps you friend