1)zno + h2so4 = znso4 + h20
50 * 0.1 = 5
n(h2so4) = 5 /98 = 0.05
n(h2so4)= n(zno)
m(zno) = n* Mr = 0.05 * 81 = 4.05
2) 4al + 302 = 2al203
5* 0.02 = 0.1
5-0.1 = 4.9
n(al) = 4.9/27 = 0.18
n(al) = 0.75n(02) = 0.135
v(o2) = n* Vm = 3.024
1)zno + h2so4 = znso4 + h20
50 * 0.1 = 5
n(h2so4) = 5 /98 = 0.05
n(h2so4)= n(zno)
m(zno) = n* Mr = 0.05 * 81 = 4.05
2) 4al + 302 = 2al203
5* 0.02 = 0.1
5-0.1 = 4.9
n(al) = 4.9/27 = 0.18
n(al) = 0.75n(02) = 0.135
v(o2) = n* Vm = 3.024