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Setarakan persamaan reaksi berikut ini.

Setarakan persamaan reaksi berikut ini.


begin mathsize 14px style open parentheses N H subscript 4 close parentheses subscript 2 S O subscript 4 end subscript left parenthesis italic a italic q right parenthesis plus Na O H left parenthesis italic a italic q right parenthesis yields Na subscript 2 S O subscript 4 open parentheses italic s close parentheses and H subscript 2 O open parentheses italic l close parentheses and N H subscript 3 open parentheses italic g close parentheses end style

  1. ...undefined

  2. ...undefined

Jawaban:

Langkah 1: membuat pemisalan angka koefisien 

begin mathsize 14px style italic a open parentheses N H subscript 4 close parentheses subscript 2 S O subscript 4 end subscript left parenthesis italic a italic q right parenthesis plus italic b Na O H left parenthesis italic a italic q right parenthesis yields italic c Na subscript 2 S O subscript 4 open parentheses italic s close parentheses and italic d H subscript 2 O open parentheses italic l close parentheses and italic e N H subscript 3 open parentheses italic g close parentheses end style 


Langkah 2: menentukan angka koefisien 

misal a = 1

N : 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 2 a end cell equals e row cell 2 left parenthesis 1 right parenthesis end cell equals e row e equals 2 end table end style 


S :

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row a equals c row c equals 1 end table end style 


Na :

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row b equals cell 2 c end cell row b equals cell 2 left parenthesis 1 right parenthesis end cell row b equals 2 end table end style 

 

O : 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 4 a and b end cell equals cell 4 c and d end cell row cell 4 left parenthesis 1 right parenthesis plus 2 end cell equals cell 4 left parenthesis 1 right parenthesis plus d end cell row 6 equals cell 4 plus d end cell row d equals cell 6 minus sign 4 end cell row d equals 2 end table end style 


Dengan demikian, reaksi setaranya adalah:

begin mathsize 14px style open parentheses N H subscript 4 close parentheses subscript 2 S O subscript 4 end subscript left parenthesis italic a italic q right parenthesis plus bold 2 Na O H left parenthesis italic a italic q right parenthesis yields Na subscript 2 S O subscript 4 open parentheses italic s close parentheses and bold 2 H subscript 2 O open parentheses italic l close parentheses and bold 2 N H subscript 3 open parentheses italic g close parentheses end style

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