Buku Kimia Analitik Terapan Kelas 11 SMK

SMK Kelas 11

Buku Kimia Analitik Terapan Kelas 11 SMK
Kelas 11
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Penerbit Direktorat Pembinaan Sekolah Menengah Kejuruan
Tahun 2014
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Materi Kimia Analitik Terapan

KATA PENGANTAR ................................ ................................ ................................ ................................ .... ii
DAFTAR ISI ................................ ................................ ................................ ................................ .................. iii
DAFTAR GAMBAR ................................ ................................ ................................ ................................ ...... vi
DAFTAR TABEL ................................ ................................ ................................ ................................ ....... viii
PETA KEDUDUKAN BUKU TEKS BAHAN AJAR ................................ ................................ .............. ix
GLOSARIUM ................................ ................................ ................................ ................................ .................. x

I. PENDAHULUAN ................................ ................................ ................................ ................................ .. 1
A. Deskripsi ................................ ................................ ................................ ................................ ....... 1
B. Prasyarat ................................ ................................ ................................ ................................ ....... 2
C. Petunjuk Penggunaan Buku Teks Bahan Ajar Siswa ................................ ................... 3
D. Tujuan Akhir Pembelajaran ................................ ................................ ................................ .. 3
E. Kompetensi Inti Dan Kompetensi Dasar ................................ ................................ .......... 4
F. Cek Kemampuan Awal ................................ ................................ ................................ ............. 5

II. PEMBELAJARAN ................................ ................................ ................................ ................................ . 8
Kegiatan Pembelajaran 1 : Pengambilan Sampel (Sampling) ................................ .............. 8
A. Deskripsi ................................ ................................ ................................ ................................ ....... 8
B. Kegiatan Belajar ................................ ................................ ................................ ......................... 8
Tujuan Pembelajaran ................................ ................................ ................................ .......... 8 1.
Uraian Materi ................................ ................................ ................................ .......................... 9 2.
a. Pengambilan Contoh (Sampling) ................................ ................................ ................ 9
b. Perbedaan Populasi dan Sampel ................................ ................................ .............. 11
c. Petugas Pengambil Contoh (PPC) ................................ ................................ ............ 15
d. Langkah -langkah Pengambilan Contoh ................................ ................................ 18
e. Mengelola Sampel Di Laboratorium ................................ ................................ ....... 75
Refleksi ................................ ................................ ................................ ................................ ... 81 3.
Tugas /Lembar Kerja ................................ ................................ ................................ ........ 82 4.
Tes Formatif ................................ ................................ ................................ ......................... 86 5.
C. PENILAIAN ................................ ................................ ................................ ................................ 87
Sikap ................................ ................................ ................................ ................................ ........ 87 1.
Pengetahuan ................................ ................................ ................................ ........................ 88 2.
Keterampilan ................................ ................................ ................................ ....................... 91 3.

Kegiatan Pembelajaran 2. Analisis Kadar Air ................................ ................................ ......... 93
A. Deskripsi ................................ ................................ ................................ ................................ .... 93
B. Kegiatan Belajar ................................ ................................ ................................ ...................... 93
Tujuan Pembelajaran ................................ ................................ ................................ ....... 93 1.
Uraian Materi ................................ ................................ ................................ ....................... 93 2.
a. Air dalam Bahan ................................ ................................ ................................ ............. 93
b. Dasar A nalisis Kadar Air ................................ ................................ ........................... 103
c. Prinsip Analisis Kadar Air ................................ ................................ ........................ 105
d. Metode/Teknik Analisis Kadar Air ................................ ................................ ....... 106
Refleksi ................................ ................................ ................................ ................................ .137 3.
Tugas ................................ ................................ ................................ ................................ ..... 138 4.
Tes Formatif ................................ ................................ ................................ ....................... 142 5.
C. PENILAIAN ................................ ................................ ................................ .............................. 143
Sikap ................................ ................................ ................................ ................................ ...... 143 1.
Pengetahuan ................................ ................................ ................................ ...................... 144 2.
Keterampilan ................................ ................................ ................................ ..................... 144 3.

Kegiatan Pembelajaran 3. Analisis Kadar Abu dan Mineral ................................ ............. 147
A. Deskripsi ................................ ................................ ................................ ................................ ..147
B. Kegiatan Belajar ................................ ................................ ................................ .................... 147
Tujuan Pembelajaran ................................ ................................ ................................ ..... 147 1.
Uraian Materi ................................ ................................ ................................ ..................... 147 2.
a. Pengertian Abu dan Mineral ................................ ................................ .................... 147
b. Peralatan Analisis Kadar Abu dan Mineral ................................ ........................ 153
c. Bahan Kimia untuk Analisis Abu dan Mineral ................................ .................. 161
d. Prinsip Analisis Kadar Abu Dan Mineral ................................ ........................... 164
e. Metode Analisis Kadar Abu dan Mineral ................................ ............................ 165
f. Melaksanakan Analisis Abu dan Mineral ................................ ............................ 169
g. Pengunaan rumus dan perhitungan pada analisis abu dan mineral ....... 18 5
Refleksi ................................ ................................ ................................ ................................ .191 3.
Tugas ................................ ................................ ................................ ................................ ..... 192 4.
Tes Formatif ................................ ................................ ................................ ....................... 193 5.
C. PENILAIAN ................................ ................................ ................................ .............................. 194
Sikap ................................ ................................ ................................ ................................ ...... 194 1.
Pengetahuan ................................ ................................ ................................ ...................... 195 2.
Keterampilan ................................ ................................ ................................ ..................... 195 3.

III. PENUTUP ................................ ................................ ................................ ................................ ..... 198
DAFTAR PUSTAKA ................................ ................................ ................................ ............................... 199

DAFTAR GAMBAR
Gambar 1 . Perbedaan Populasi dan Sampel ................................ ................................ .................. 12
Gambar 2 . Populasi berdasarkan kesesragaman ................................ ................................ ......... 12
Gambar 3 . Populasi berdasarkan Distribusi ................................ ................................ .................. 13
Gambar 4 . Sampel yang diambil dari populasi ................................ ................................ ............. 13
Gambar 5 . Sampel cair dalam kemasan botol ................................ ................................ ............... 14
Gambar 6 . (a), (b), (c) dan (d) Jenis Sampel Padat ................................ ................................ ..... 15
Gambar 7 . Teknik sampling ................................ ................................ ................................ ................. 23
Gambar 8 . Teknik Random Sampling ................................ ................................ .............................. 24
Gambar 9 . Teknik Proportionate Stratified Random Sampling ................................ ............. 24
Gambar 10 . Teknik Cluster Random Sampling ................................ ................................ ............ 26
Gambar 11 . Alur Pengambilan Sampel ................................ ................................ ........................... 31
Gambar 12 . Contoh Perubahan Kualitas Air pada Pengukuran Selama 3 Minggu ........ 66
Gambar 13 . Cara pengambilan sampel air ................................ ................................ ..................... 72
Gambar 14 . Molekul air ................................ ................................ ................................ ......................... 94
Gambar 15 . Air sebagai pelarut ................................ ................................ ................................ .......... 95
Gambar 16 . Jenis Bahan Mengandung Kadar Air ................................ ................................ ....... 98
Gambar 17 . Riffle Divider ................................ ................................ ................................ .................... 114
Gambar 18 . Dean -Stark App. ................................ ................................ ................................ ............. 125
Gambar 19 . Infrared Moisture Meters ................................ ................................ ........................... 134
Gambar 20 . Moisture Meter Grain ................................ ................................ ................................ ..135
Gambar 21 . Krus Porselen ................................ ................................ ................................ .................. 154
Gambar 22 . Krus Platina ................................ ................................ ................................ ..................... 154
Gambar 23 . Penyimpan krus ................................ ................................ ................................ ............. 155
Gambar 24 Penjepit krus ( Crusible tongs ) ................................ ................................ ................... 156
Gambar 25 . Tanur/Furnace ................................ ................................ ................................ ............... 157
Gambar 26 . Oven ................................ ................................ ................................ ................................ .... 158
Gambar 27 . Timbangan ................................ ................................ ................................ ....................... 159
Gambar 28 . Kaki Tiga ................................ ................................ ................................ ........................... 159
Gambar 29 . Lampu Spirtus ................................ ................................ ................................ ................. 160
Gambar 30 . Kuarsa Dan Segi Tiga Porselen ................................ ................................ ................. 161
Gambar 31 . Pembakaran Sampel ................................ ................................ ................................ ..... 172

DAFTAR TABEL
Tabel 1 . Jumlah sampel yang harus diambil ................................ ................................ .................. 41
Tabel 2 . Jumlah kemasan kecil yang harus diambil dari jumlah yang ada ........................ 41
Tabel 3 . Jumlah kemasan kecil yang diambil untuk setiap karton ................................ ....... 42
Tabel 4 . Standar FAO (FAO Agricultural Services Bulletin 74, Rome 1989) ..................... 48
Tabel 5 . Metode pengambilan sampel ................................ ................................ ............................. 49
Tabel 6 . Tempat (titik) Pengambilan Sampel ................................ ................................ ............... 66
Tabel 7 . Persen kehilangan garam selama pengabuan ................................ ........................... 167
Tabel 8 . Berat Bahan untuk Analisis Pengabuan ................................ ................................ ....... 172