Iklan

Iklan

Pertanyaan

Sebanyak 1,275 gram garam barium asetat (K a CH 3 COOH = 10 -5 dan Mr barium asetat =255) dilarutkan dalam air hingga 100 mL. Berapakah pH larutan garam tersebut?

Sebanyak 1,275 gram garam barium asetat (Ka CH3COOH = 10-5 dan Mr barium asetat = 255) dilarutkan dalam air hingga 100 mL. Berapakah pH larutan garam tersebut?

Iklan

Y. Sahara

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

Jawaban terverifikasi

Jawaban

pH larutan adalah 9

pH larutan adalah 9

Iklan

Pembahasan

reaksi hidrolisis Hitung konsentrasi garam Jadi, pH larutan adalah 9

Ba open parentheses C H subscript 3 C O O close parentheses subscript 2 equilibrium 2 C H subscript 3 end subscript C O O to the power of minus sign and Ba to the power of 2 plus sign 

reaksi hidrolisis

C H subscript 3 C O O to the power of minus sign and H subscript 2 O yields and is yielded by C H subscript 3 C O O H and O H to the power of minus sign 

Hitung konsentrasi garam 

table attributes columnalign right center left columnspacing 0px end attributes row M equals cell mol over L end cell row blank equals cell fraction numerator massa over Mr over denominator L end fraction end cell row blank equals cell fraction numerator fraction numerator 1 comma 275 space gram over denominator 255 end fraction over denominator 0 comma 1 end fraction end cell row blank equals cell 0 comma 05 space M end cell end table 

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 Kw over Ka cross times M cross times val end root end cell row blank 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 5 cross times 10 to the power of negative sign 2 end exponent cross times 2 end root end cell row blank equals cell square root of 10 cross times 10 to the power of negative sign 11 end exponent end root end cell row blank equals cell square root of 10 to the power of negative sign 10 end exponent end root end cell row blank equals cell 10 to the power of negative sign 5 end exponent end cell row blank blank blank row pOH equals cell negative sign log open square brackets O H to the power of minus sign close square brackets end cell row blank equals cell negative sign log space 10 to the power of negative sign 5 end exponent end cell row blank equals 5 row blank blank blank row pH equals cell 14 minus sign pOH end cell row blank equals cell 14 minus sign 5 end cell row blank equals 9 end table 

Jadi, pH larutan adalah 9

Perdalam pemahamanmu bersama Master Teacher
di sesi Live Teaching, GRATIS!

30

Iklan

Iklan

Pertanyaan serupa

Hitunglah pH larutan berikut. CH 3 ​ COONa 0,1 M ( K a ​ CH 3 ​ COOH = 2 × 1 0 − 5 )

17

4.6

Jawaban terverifikasi

RUANGGURU HQ

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

Coba GRATIS Aplikasi Roboguru

Coba GRATIS Aplikasi Ruangguru

Download di Google PlayDownload di AppstoreDownload di App Gallery

Produk Ruangguru

Hubungi Kami

Ruangguru WhatsApp

+62 815-7441-0000

Email info@ruangguru.com

info@ruangguru.com

Contact 02140008000

02140008000

Ikuti Kami

©2024 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia