If the calcium oxide were to be obtained by the heating of calcium hydroxide, how much hydroxide would be needed to obtain the 1

Question

Paraphin [41]

3 years ago

7

If the calcium oxide were to be obtained by the heating of calcium hydroxide, how much hydroxide would be needed to obtain the 1

5.0 g?

Chemistry

1 answer:

Sidana [21] · Answer 1 · 2022-07-24T00:57:41+03:00

Sidana [21]3 years ago

7 0

Ca(OH)2 -------> CaO + H2O
ratio is 1 : 1
CaO Mr= 56g
15/56 = 0.268 mol (mols of CaO in 15g)
Ca(OH)2 Mr= 74g
0.268x74= 19.83g (required amount of Cash(OH)2)