Persamaan reaksi kimia yang telah setara adalah
1. N₂ + 3H₂ → 2NH₃
2. H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
Nomor 1
Menggunakan cara ABC maka,
[tex] \sf _aN_2 + _bH_2 \to _cNH_3 [/tex]
sehingga diketahui:
Nilai N
[tex] \sf misal :\ a = 1 \\ \sf 2a = c \\ \sf 2(1) = c \\ \sf 2 = c [/tex]
Nilai H
[tex] \sf 2b = 3c \\ \sf 2b = 3(2) \\ \sf b = \frac {6}{2} \\ \sf b = 3 [/tex]
Sehingga persamaan reaksi yang setara adalah
[tex] \sf N_2 + 3H_2 \to 2NH_3 [/tex]
Nomor 2
[tex] \sf _aH_2SO_4 + _bNaOH \to _cNa_2SO_4 + _dH_2O [/tex]
[tex] \sf 2a + b = 2d \\ \sf 2(1) + 2 = 2d \\ \sf 2 + 2 = 2d \\ \sf 4 = 2d \\ \sf d = \frac {4}{2} \\ \sf d = 2[/tex]
Nilai S
[tex] \sf misal :\ c = 1 \\ \sf a = c \\ \sf a = 1 [/tex]
Nilai O
[tex] \sf 4a + b = 4c + d \\ \sf 4(1) + 2 = 4c + 2 \\ \sf 6 = 4c + 2 \\ \sf 6-2=4c \\ \sf 4 = 4c \\ \sf c = \frac {4}{4} \\ \sf c = 1 [/tex]
Nilai Na
[tex] \sf misal :\ c = 1 \\ \sf b = 2c \\ \sf b = 2(1) \\ \sf b = 2 [/tex]
[tex] \sf H_2SO_4 + 2NaOH \to Na_2SO_4 + 2H_2O [/tex]
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Persamaan reaksi kimia yang telah setara adalah
1. N₂ + 3H₂ → 2NH₃
2. H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
Penjelasan dengan langkah langkah
Nomor 1
Menggunakan cara ABC maka,
[tex] \sf _aN_2 + _bH_2 \to _cNH_3 [/tex]
sehingga diketahui:
Nilai N
[tex] \sf misal :\ a = 1 \\ \sf 2a = c \\ \sf 2(1) = c \\ \sf 2 = c [/tex]
Nilai H
[tex] \sf 2b = 3c \\ \sf 2b = 3(2) \\ \sf b = \frac {6}{2} \\ \sf b = 3 [/tex]
Sehingga persamaan reaksi yang setara adalah
[tex] \sf N_2 + 3H_2 \to 2NH_3 [/tex]
Nomor 2
Menggunakan cara ABC maka,
[tex] \sf _aH_2SO_4 + _bNaOH \to _cNa_2SO_4 + _dH_2O [/tex]
Nilai H
[tex] \sf 2a + b = 2d \\ \sf 2(1) + 2 = 2d \\ \sf 2 + 2 = 2d \\ \sf 4 = 2d \\ \sf d = \frac {4}{2} \\ \sf d = 2[/tex]
Nilai S
[tex] \sf misal :\ c = 1 \\ \sf a = c \\ \sf a = 1 [/tex]
Nilai O
[tex] \sf 4a + b = 4c + d \\ \sf 4(1) + 2 = 4c + 2 \\ \sf 6 = 4c + 2 \\ \sf 6-2=4c \\ \sf 4 = 4c \\ \sf c = \frac {4}{4} \\ \sf c = 1 [/tex]
Nilai Na
[tex] \sf misal :\ c = 1 \\ \sf b = 2c \\ \sf b = 2(1) \\ \sf b = 2 [/tex]
Sehingga persamaan reaksi yang setara adalah
[tex] \sf H_2SO_4 + 2NaOH \to Na_2SO_4 + 2H_2O [/tex]