Ka minta bantuan nya nomer 37 yang B

NaHSO4 + NaOH +8H+ + 8e –> Na2S + 5H2O [3]
2Al + 6OH- –> Al2O3 + 3H2O + 6e [4]
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3NaHSO4 + 3NaOH + 24H+ +8Al + 24OH- –> 3Na2S + 15H2O + 4Al2O3 + 12H2O
–> 3NaHSO4 + 3NaOH + 24H2O + 8Al –> 3Na2S + 27H2O + 4Al2O3

Na = 3
H = 54
S = 3
O = 39
Al = 8