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Sebanyak larutan mempunyai harga pH sebesar...

Sebanyak begin mathsize 14px style 50 space mL end style larutan begin mathsize 14px style H subscript 2 S O subscript 4 space 0 comma 02 space M end style mempunyai harga pH sebesarundefined...

  1. begin mathsize 14px style 2 end style 

  2. begin mathsize 14px style 2 minus sign log space 2 end style 

  3. begin mathsize 14px style 2 minus sign log space 4 end style 

  4. begin mathsize 14px style 4 minus sign log space 2 end style 

  5. begin mathsize 14px style 4 end style 

Jawaban:

Asam sulfat begin mathsize 14px style open parentheses H subscript 2 S O subscript 4 close parentheses end style merupakan asam yang dianggap terionisasi sempurna dalam larutannya.

begin mathsize 14px style H subscript 2 S O subscript 4 left parenthesis italic a italic q right parenthesis yields 2 H to the power of plus sign left parenthesis italic a italic q right parenthesis plus S O subscript 4 to the power of 2 minus sign end exponent left parenthesis italic a italic q right parenthesis 0 comma 02 space M space space space space space space space space space left parenthesis 2 cross times 0 comma 02 space M right parenthesis end style
 

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

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open square brackets H to the power of plus sign close square brackets end cell equals cell 2 cross times 0 comma 02 space M end cell row blank equals cell 0 comma 04 space M end cell row blank equals cell 4 cross times 10 to the power of negative sign 2 end exponent space M end cell end table end style  

  • Menghitung pH:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row pH equals cell negative sign log space open square brackets H to the power of plus sign close square brackets end cell row blank equals cell negative sign log space 4 cross times 10 to the power of negative sign 2 end exponent end cell row blank equals cell 2 minus sign log space 4 end cell end table end style
 

Jadi, jawaban yang benar adalahspaceD.

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