Pertanyaan

Tentukan persentase kadar masing-masing unsur dalam senyawaberikut. e. C 12 H 22 O 11

Tentukan persentase kadar masing-masing unsur dalam senyawa berikut.

e. $C_{12} H_{22} O_{11}$

A. Chandra

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Jawaban

% C, % Hdan % O dalam senyawa berturut-turut adalah 42,11%, 6,43%dan 51,46%.

% C, % H dan % O dalam senyawa berturut-turut adalah 42,11%, 6,43% dan 51,46%.

Pembahasan

Diketahui C = 12, O = 16, H = 1, sehingga nilai : Menentukan persentase kadar masing-masing unsur: Jadi, % C, % Hdan % O dalam senyawa berturut-turut adalah 42,11%, 6,43%dan 51,46%.

Diketahui italic A subscript r C = 12, O = 16, H = 1, sehingga nilai italic M subscript r space C subscript 12 H subscript 22 O subscript 11 :

Menentukan persentase kadar masing-masing unsur:

$table attributes columnalign right center left columnspacing 0px end attributes row cell percent sign C end cell equals cell fraction numerator 12 cross times italic A subscript r space C over denominator italic M subscript r space C subscript 12 H subscript 22 O subscript 11 end fraction cross times 100 percent sign end cell row blank equals cell fraction numerator 12 cross times 12 over denominator 342 end fraction cross times 100 percent sign end cell row blank equals cell 144 over 342 cross times 100 percent sign end cell row blank equals cell 42 comma 11 percent sign end cell end table$

$table attributes columnalign right center left columnspacing 0px end attributes row cell percent sign H end cell equals cell fraction numerator 22 cross times italic A subscript r space H over denominator italic M subscript r space C subscript 12 H subscript 22 O subscript 11 end fraction cross times 100 percent sign end cell row blank equals cell fraction numerator 22 cross times 1 over denominator 342 end fraction cross times 100 percent sign end cell row blank equals cell 22 over 342 cross times 100 percent sign end cell row blank equals cell 6 comma 43 percent sign end cell end table$

$table attributes columnalign right center left columnspacing 0px end attributes row cell percent sign O end cell equals cell fraction numerator 11 cross times italic A subscript r space O over denominator italic M subscript r space C subscript 12 H subscript 22 O subscript 11 end fraction cross times 100 percent sign end cell row blank equals cell fraction numerator 11 cross times 16 over denominator 342 end fraction cross times 100 percent sign end cell row blank equals cell 176 over 342 cross times 100 percent sign end cell row blank equals cell 51 comma 46 percent sign end cell end table$

Jadi, % C, % H dan % O dalam senyawa berturut-turut adalah 42,11%, 6,43% dan 51,46%.