Tong so hat mang dien trong X la 2p+n=180 (vi p=e) => 2p= 180-n(1)
Hat mang dien gap 1,4324 lan hat ko mang dien tuc la 2p= 1,4324.n(2)
Thay 1 vao 2 roi giai ra
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#Song: Try
2. Zn+Cu(NO3)2-> Zn(NO3)2+Cu
Zn+Pb(NO3)2-> Zn(NO3)2+Pb
gọi x là số mol lá kẽm pứ
mZn 1 pứ=65x(g)
mCu pứ=64x(g)
Có 65x-64x=0,05
=> x=0,05
mZn II pứ= 65.0,05=3,25g
mPb pứ= 207,0,05=10,35g
m Zn II tăng= 10,35-3,25=7,1(g)