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Massa  yang harus dilarutkan dalam  larutan agar p...

Massa begin mathsize 14px style C H subscript 3 C O O H end style yang harus dilarutkan dalam begin mathsize 14px style 50 space mL end style larutan agar pH-nya sama dengan begin mathsize 14px style 9 end style begin mathsize 14px style left parenthesis Mr space C H subscript 3 C O O Na equals 82 comma end style Error converting from MathML to accessible text. adalahundefined...

Jawaban:

*Koreksi soal, seharusnya massa begin mathsize 14px style C H subscript 3 C O O Na end style bukan begin mathsize 14px style C H subscript 3 C O O H end style

 begin mathsize 14px style C H subscript 3 C O O Na end style merupakan garam basa, karena berasal dari kation basa kuat dan anion asam lemah.

  • Menghitung pOH begin mathsize 14px style C H subscript 3 C O O Na end style:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row pH equals cell 9 space end cell row pOH equals cell 14 minus sign pH end cell row blank equals cell 14 minus sign 9 end cell row blank equals 5 end table end style 
 

  • Menghitung begin mathsize 14px style open square brackets O H to the power of minus sign close square brackets end style:

begin mathsize 14px style open square brackets O H to the power of minus sign close square brackets equals 10 to the power of negative sign pOH end exponent equals 10 to the power of negative sign 5 end exponent end style 

 

  • Menghitung begin mathsize 14px style open square brackets C H subscript 3 C O O Na close square brackets end style:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open square brackets O H to the power of minus sign close square brackets end cell equals cell square root of K subscript italic w over K subscript italic a cross times open square brackets C H subscript 3 C O O Na close square brackets end root end cell row cell 10 to the power of negative sign 5 end exponent end cell equals cell square root of 10 to the power of negative sign 14 end exponent over 10 to the power of negative sign 5 end exponent cross times open square brackets C H subscript 3 C O O Na close square brackets end root end cell row cell open parentheses 10 to the power of negative sign 5 end exponent close parentheses squared end cell equals cell open parentheses square root of 10 to the power of negative sign 14 end exponent over 10 to the power of negative sign 5 end exponent cross times open square brackets C H subscript 3 C O O Na close square brackets end root close parentheses squared end cell row cell 10 to the power of negative sign 10 end exponent end cell equals cell 10 to the power of negative sign 14 end exponent over 10 to the power of negative sign 5 end exponent cross times open square brackets C H subscript 3 C O O Na close square brackets end cell row cell 10 to the power of negative sign 10 end exponent end cell equals cell 10 to the power of negative sign 9 end exponent cross times open square brackets C H subscript 3 C O O Na close square brackets end cell row cell open square brackets C H subscript 3 C O O Na close square brackets end cell equals cell 10 to the power of negative sign 10 end exponent over 10 to the power of negative sign 9 end exponent end cell row cell open square brackets C H subscript 3 C O O Na close square brackets end cell equals cell 10 to the power of negative sign 1 end exponent space M end cell end table end style 
 

  • Menghitung massa begin mathsize 14px style C H subscript 3 C O O Na end style:

Error converting from MathML to accessible text. 

 

Jadi, massa begin mathsize 14px style C H subscript 3 C O O Na end style yang harus dilarutkan adalah begin mathsize 14px style bold 0 bold comma bold 41 bold space bold gram bold. end style 

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