Roboguru

Larutan  0,1 M () mempunyai pH...

Larutan begin mathsize 14px style N H subscript 3 end style 0,1 M (begin mathsize 14px style K subscript b equals 4.10 to the power of negative sign 5 end exponent end style) mempunyai pH...space 

Jawaban:

Amonia merupakan senyawa asam lemah yang dapat dicari pH larutannya melalui cara sebagai berikut:


begin mathsize 14px style open square brackets H to the power of plus sign close square brackets equals square root of K subscript a cross times M end root open square brackets H to the power of plus sign close square brackets equals square root of 4.10 to the power of negative sign 5 end exponent cross times 10 to the power of negative sign 1 end exponent end root open square brackets H to the power of plus sign close square brackets equals square root of 4 cross times 10 to the power of negative sign 6 end exponent end root open square brackets H to the power of plus sign close square brackets equals 2 cross times 10 to the power of negative sign 3 end exponent  pH equals minus sign log space open square brackets H to the power of plus sign close square brackets pH equals minus sign log space 2 cross times 10 to the power of negative sign 3 end exponent pH equals 3 minus sign log space 2 end style 
 

Jadi, pH larutan amonia tersebut adalah 3-log 2.space 

0

Ruangguru

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Ruangguru

Produk Ruangguru

Produk Lainnya

Hubungi Kami

Ikuti Kami

©2021 Ruangguru. All Rights Reserved