M
maruko_92
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
cau1:Lay' m gam hon hop gom Fe va Cu co ti le khoi luong tuong ung la 7:3 phan ung hoan toan voi dung dich chua 66,15 gam HNO3 sau phan ung con lai 0,75 gam chat ran va 8,4l khi Y gom No va NO2.gia tri cua m la?
cau2:CHo 45,9 gam hon hop gom Cu vA Fe304 tac dung voi dung dich HNO3loang,dung nog va khuay deu .Sau khi cac phan ung xay ra hoan toan thu duoc 2,52l khi NO(san pham khu duy nhat),dung dich Y va con lai 1,8 gam kim loai.co can ding dich Y thu duoc m gam muoi khan.gia tri cua m la?
cau 3: cho 11,1 gam hon hop Z gom Fe va Fe304 TAC dung voi 120 ml dung dich HNo3 a mol/l dun nong va khuay deu.Sau khi phan ung xay ra hoan toan thu dc1,344 lit khi No duy nhat va dung dich Z1 va con lai 0,867 gam kim loai.Co can dung dich Z1 thu dc m gam muoi khan.Gia tri cua m va a la/
nho thay lam giup em ah!![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
cau2:CHo 45,9 gam hon hop gom Cu vA Fe304 tac dung voi dung dich HNO3loang,dung nog va khuay deu .Sau khi cac phan ung xay ra hoan toan thu duoc 2,52l khi NO(san pham khu duy nhat),dung dich Y va con lai 1,8 gam kim loai.co can ding dich Y thu duoc m gam muoi khan.gia tri cua m la?
cau 3: cho 11,1 gam hon hop Z gom Fe va Fe304 TAC dung voi 120 ml dung dich HNo3 a mol/l dun nong va khuay deu.Sau khi phan ung xay ra hoan toan thu dc1,344 lit khi No duy nhat va dung dich Z1 va con lai 0,867 gam kim loai.Co can dung dich Z1 thu dc m gam muoi khan.Gia tri cua m va a la/
nho thay lam giup em ah!