cho 8 gam dong oxit phan ung voi dd axit clohidric lay du , sau khi phan ung hoan toan dd thu duoc co chua m gam muoi dong clorua gia tri cua m la

Question

tuyetnhung · Answer

`n_(CuO)= frac{8}{80}=0,1(mol)`   `CuO+2HCl->CuCl_2+H_2O`   Theo PT   `n_(CuCl_2)=n_(CuO)=0,1(mol)`   `=>m_(CuCl_2)=0,1.135=13,5(g)`

thanhmai · Answer

`nCuO= 8:80 = 0,1 (mol)`   `CuO + 2HCl -> CuCl_2 + H_2O`   ` => nCuCl_2 = nCuO =0,1 (mol)`   ` => mCuCl_2 = 0,1.135=13,5 (g)`

0 bình luận về “cho 8 gam dong oxit phan ung voi dd axit clohidric lay du , sau khi phan ung hoan toan dd thu duoc co chua m gam muoi dong clorua gia tri cua m la”