Hòa tan hoàn toàn 40,8g Al,O, vào HCl thu được AlCl, và H,O. a/ Viết PTHH. b/ Tính khối lượng của khí HCl? c/ Tính khối lượng của sản phẩm?

2 câu trả lời

  `flower`

Đáp án + Giải thích các bước giải:

`Al_2O_3+6HCl→2AlCl_3+3H_2O`

`n_{Al_2O_3}=(40,8)/102=0,4(mol)`

Theo PT : `n_{HCl}=6/1 ×0,4=2,4(mol)`

`m_{HCl}=2,4×36,5=87,6(g)`

ĐLBTKL : `m_{Al_2O_3}+m_{HCl}→m_{AlCl_3}+m_{H_2O}`

`m_{Sp}=40,8+87,6=128,4(g)`

$\text{Đáp án và Giải thích các bước giải: mình ghi trong ảnh đính kèm rồi nhé !!}$$\\$$\\$$\text{CHÚC BẠN HỌC TỐT !!}$

 

 

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