\(n_{CaO}=\dfrac{5,6}{56}=0,1\left(mol\right)\) \(\)
a. PTHH: \(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
Theo PT: 1............................1
Theo đề: 0,1..........................0,1
Theo PT ta có: \(n_{Ca\left(OH\right)_2}=n_{CaO}=0,1\left(mol\right)\)
b. Khối lượng \(Ca\left(OH\right)_2\) là:
\(m_{Ca\left(OH\right)_2}=n.M=0,1.74=7,4\left(g\right)\)
a) CaO + H2O → Ca(OH)2
\(n_{CaO}=\dfrac{5,6}{56}=0,1\left(mol\right)\)
b) Theo PT: \(n_{Ca\left(OH\right)_2}=n_{CaO}=0,1\left(mol\right)\)
\(\Rightarrow m_{Ca\left(OH\right)_2}=0,1\times74=7,4\left(g\right)\)