Question

1 mole of ca(oh)2 weighs
*please dont keep unnecessary reply instead of answer​

Answer 1

Answer:

74 g

Explanation:

First we find molecular mass of Ca(OH)₂

So,

Ca = 40 u

O = 16 * 2 = 32 u

H = 1*2 = 2 u

So,

Molecular Mass of Ca(OH)₂ = 40 + 32 + 2 = 74 u

We know that,

No. of Moles = Given Mass/Molecular Mass

No. of Moles = 1 mol [GIVEN]

So,

1 = Given Mass/74

Given Mass = 74*1

==> 74 g

Answer 2

Answer:

1 mole of Ca( OH) 2 = 74g

Explanation:

atomic mass of Ca is 40 ,O is 16 and H is 1

so,Ca( OH) = 40× 1+1×2+16×2 = 40+2+32=74g