Pertanyaan

Suatu basa lemah derajat disosiasinya 1%. Jika pH larutan 11, maka konsentrasi basa sebesar ….

S. Lubis

Master Teacher

Jawaban terverifikasi

Pembahasan

Selanjutnya, dalam menentukan konsentrasi perhitungannya menjadi

begin mathsize 12px style pOH equals 14 minus pH pOH equals 14 minus 11 equals 3 pOH equals negative log invisible function application open square brackets OH to the power of minus close square brackets open square brackets OH to the power of minus close square brackets equals 10 to the power of negative pOH end exponent equals 10 to the power of negative 3 end exponent end style

Selanjutnya, dalam menentukan konsentrasi perhitungannya menjadi

$begin mathsize 12px style open square brackets OH to the power of minus close square brackets equals straight alpha cross times open square brackets basa close square brackets open square brackets basa close square brackets equals fraction numerator open square brackets OH to the power of minus close square brackets over denominator straight alpha end fraction equals 10 to the power of negative 3 end exponent over 10 to the power of negative 2 end exponent open square brackets basa close square brackets equals 10 to the power of negative 1 end exponent end style$