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Kelompok 15
Muhammad Raja Yustisia Yudhiputra (082001900047)
Salsabila Syifa Nadiyah Khairunnisa (082001900061)
Dosen Pengampu
Dr. Ir. Diana Irvindiaty Hendrawan, Msi
Pramiati Purwaningrum, S.T,M.T
Asisten Labolatorium
Sharfina Nadhilah
JURUSAN TEKNIK LINGKUNGAN
FAKULTAS ARSITEKTUR LANSKAP DAN TEKNOLOGI LINGKUNGAN
UNIVERSITAS TRISAKTI
JAKARTA
2020
Masukkan 10 mL larutan standard kaslium karbonat
(πΆπ‘ŽπΆπ‘‚3) ke dalam labu erlenmeyer,
Masukkan 40mL air suling, 5mL larutan penyangga
pH 10, dan 50mg indikator EBT. Warna akan
berubah menjadi merah keunguan,
Titrasi dengan larutan π‘π‘Ž2𝐸𝐷𝑇𝐴 0,01M sampai
berubah warna menjadi biru,
Catat volume π‘π‘Ž2𝐸𝐷𝑇𝐴 yang digunakan dan
ulangi titrasi sebanyak tiga kali, kemudia rata-
ratakan,
Hitung molaritas larutan baku π‘π‘Ž2𝐸𝐷𝑇𝐴.
Hitung molaritas larutan baku π‘π‘Ž2𝐸𝐷𝑇𝐴
Ulangi titrasi di atas sebanyak tiga kali, lalu rata-ratakan volume π‘π‘Ž2𝐸𝐷𝑇𝐴 yang digunakan
Titrasi dengan larutan π‘π‘Ž2𝐸𝐷𝑇𝐴 0,01M sampai terjadi perubahan warna menjadi ungu,
dan catat volume π‘π‘Ž2𝐸𝐷𝑇𝐴 yang digunakan
Tambahkan 1mL larutan penyangga pH 12, dan 50mg indikator maurexide, larutan akan
berwarna merah keunguan
Masukkan 10mL larutan standard kalsium karbonat (πΆπ‘ŽπΆπ‘‚3) ke dalam labu erlenmeyer
β€’ Masukkan 25mL sampel air ke dalam labu
erlenmeyer 250mL,
β€’ Tambahkan 1-2mL larutan penyangga pH 10 Β± 0,1
β€’ Masukkan 50mg indikator EBT
β€’ Titrasi dengan larutan EDTA 0,01M sampai larutan
berubah warna menjadi biru
β€’ Catat volume EDTA dan ulangi titrasi sebanyak tiga
kali, lalu rata-ratakan.
Masukkan 25mL sampel air ke dalam Labu Erlenmeyer 250mL
Tambahkan 1-2mL larutan NaOH 0,1N hingga Ph sekitar 12-13
Apabila sampel air keruh, tambahkan 1mL larutan KCN 10%
Bubuhkan 50mg indikator Maurexide dan lakukan titrasi
dengan larutan EDTA 0,01M sampai warna larutan menjadi
ungu
Catat volume EDTA. Ulangi titrasi sebanyak tiga kali, dan rata-ratakan
volume EDTA yang digunakan.
Masukkan
10mL
larutan
standard
NaCl 0,0141
N ke dalam
labu
erlenmeyer
250mL
Teteskan
1mL larutan
𝐴𝑔2πΆπ‘Ÿπ‘‚4
5%.
Titrasi
dengan
larutan
𝐴𝑔𝑁𝑂3
0,0141N,
hingga
berwarna
merah bata
Ulangi
langkah
disamping
menggunak
an air suling
sebagai
larutan
blanko
Catat
𝐴𝑔𝑁𝑂3
yang
digunakan,
lalu hitung
normalitas
𝐴𝑔𝑁𝑂3.
Masukkan 100mL sampel air ke
dalam labu erlenmeyer
Tambahkan 1mL 𝐾2πΆπ‘Ÿπ‘‚4 5%
Titrasi dengan larutan 𝐴𝑔𝑁𝑂3
0,0141 N sampai terbentuk
endapan merah bata permanen
Ulangi langkah diatas
menggunakan air suling
sebagai larutan blanko lalu
catat volume 𝐴𝑔𝑁𝑂3 yang
digunakan.
Masukkan 25mL larutan 𝐾𝐻(𝐼𝑂3)2 ke dalam labu erlenmeyer
Tambahkan 1g KI dan 10mL asam sulfat (1:9), lalu tambahkan air suling
sampai terisi penuh
Titrasi dengan larutan natrium tiosulfat hingga larutan berwarna kuning
muda
Tambahkan indikator kanji, sehingga larutan menjadi berawarna biru
Titrasi kembali hingga warna biru larutan hilang. Catat volume larutan
natrium tiosulfat yang digunakan.
Hitung normalitas (π‘π‘Ž2𝑆2𝑂3)
Masukkan 100mL
sampel air ke dalam
labu erlenmeyer
Tambahkan 1mL
larutan akali iodida
dan 1mL larutan kanji
Larutan akan menjadi
biru
Titrasi dengan larutan
natrium tiosulfat
0,025 N sampai
warna larutan hilang
Catat volume
π‘΅π’‚πŸπ‘ΊπŸπ‘ΆπŸ‘ yang
digunakan.
Dik: 𝑉1 = 4,4mL BM πΆπ‘ŽπΆπ‘‚2 = 50
𝑉2 = 4,6 mL m sampel = 25mL
π‘‰π‘Ÿπ‘Žπ‘‘π‘Žβˆ’π‘Ÿπ‘Žπ‘‘π‘Ž = 4,5mL M EDTA = 0,01M
Dit: Kesadahan Total?
JAWAB
𝑀𝑔
πΆπ‘ŽπΆπ‘‚2
𝐿
=
1000
5
Γ— 4,5 Γ— 0,01 Γ— 50
= 90 mg/l
Dik: 𝑉1 = 1,5π‘šπ‘™ M EDTA = 0,01 M
𝑉2 = 1,5π‘šπ‘™ βˆ† Ca = 40
Dit: Kesadahan πΆπ‘Ž2+ ?
JAWAB
𝑀𝑔
πΆπ‘Ž
𝐿
=
1000
25
Γ— 0,5 Γ— 0,01 Γ— 40
= 24 mg/l
Dik: A = 100 mg CaCl/L M EDTA = 0,01 M
B = 25 mg Ca/L Ar Mg = 24
V EDTA = 3mL
Dit: Kesadahan 𝑀𝑔2+
?
JAWAB
𝑀𝑔
𝑀𝑔
𝐿
=
1000
25
Γ— 3 Γ— 0,01 Γ— 24
= 28,8 mg/l
Dik: 𝑉1 = 4,7mL π‘‰π‘π‘™π‘Žπ‘›π‘˜π‘œ = 1,1mL
𝑉2 = 4,7mL konsentrasi βˆ†π΄π‘”π‘π‘‚3 = 0,0123mL
π‘‰π‘Ÿπ‘Žπ‘‘π‘Žβˆ’π‘Ÿπ‘Žπ‘‘π‘Ž = 4,7mL N 𝐴𝑔𝑁𝑂3 = 0,0123
mL sampel = 100mL
Dit: Penetapan ion klorida?
JAWAB
𝐢𝑙
𝑀𝑔
𝐿
=
4,7 βˆ’ 1,1 Γ— 0,0123 Γ— 35,45 Γ— 1000
100
=
1569,726
100
= 15,69726 mg/l
Dik: V = 8,9mL Dit: Sisa klor ?
mL sampel = 25mL
M π‘π‘Ž2𝑆2𝑂3 = 0,1 M
JAWAB
𝑀𝑔
𝐿
=
8,9 Γ— 0,1 Γ— 1000 Γ— 35,45
25
= 1262,02 mg/l
No Parameter Unit Standar Baku Mutu (Kadar Maksimum)
1 Klorida (Cl) Mg/L 600
No Parameter Unit Standar Baku Mutu (Kadar Maksimum)
1 Klorida (Cl) Mg/L 600
2 Sisa Klor Mg/L 0,03
Standar baku mutu Klorida (Cl) dari Peraturan Gubernur
Standar baku mutu Klorida (Cl) dan Klorin bebas menurut Peraturan Pemerintah
Republik Indonesia Nomor 82 Tahun 2001 Tentang Pengelolaan Kualitas Air dan
Pengendalian Pencemaran Air
No Parameter Unit Standar Baku Mutu (Kadar Maksimum
1 Kesadahan Mg/L 500
Standar baku mutu Kesadahan menurut Peraturan Menteri Kesehatan
Republik Indonesia Nomor 32 Tahun 2017
Β» Dapat dilihat pada perhitungan bahwa
kesadahan total yang dihitung masih memenuhi
baku mutu yang telah ditetapkan.
Β» Kesadahan πΆπ‘Ž2+ yang ada dalam perhitungan
memenuhi standar baku mutu
Β» Kesadahan 𝑀𝑔2+
yang dihitung memenuhi
standar baku mutu kesadahan yang telah
ditetapkan
Β» Kandungan Ion Klorida dalam perhitungan
memenuhi standar baku mutu, baik dalam
Pergub maupun Peraturan Pemerintah
Β» Dari perhitungan sisa khlor yang mencapai
1262,02 mg/L dapat dikatakan bahwa sisa khlor
tidak memenuhi baku mutu, karena melebihi
dari angka yang disarankan. Dampak dari
berlebihnya khlor ini yaitu tingginya tingkat
keasinan perairan dan juga rusaknya ozon
karena penguapan zat klorin, sementara pada
tubuh menyebabkan sesak nafas dan juga iritasi
saluran pernapasan.

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Analisis Kadar Kesadahan dan Klorida Pada Perairan

  • 1. Kelompok 15 Muhammad Raja Yustisia Yudhiputra (082001900047) Salsabila Syifa Nadiyah Khairunnisa (082001900061) Dosen Pengampu Dr. Ir. Diana Irvindiaty Hendrawan, Msi Pramiati Purwaningrum, S.T,M.T Asisten Labolatorium Sharfina Nadhilah JURUSAN TEKNIK LINGKUNGAN FAKULTAS ARSITEKTUR LANSKAP DAN TEKNOLOGI LINGKUNGAN UNIVERSITAS TRISAKTI JAKARTA 2020
  • 2. Masukkan 10 mL larutan standard kaslium karbonat (πΆπ‘ŽπΆπ‘‚3) ke dalam labu erlenmeyer, Masukkan 40mL air suling, 5mL larutan penyangga pH 10, dan 50mg indikator EBT. Warna akan berubah menjadi merah keunguan, Titrasi dengan larutan π‘π‘Ž2𝐸𝐷𝑇𝐴 0,01M sampai berubah warna menjadi biru, Catat volume π‘π‘Ž2𝐸𝐷𝑇𝐴 yang digunakan dan ulangi titrasi sebanyak tiga kali, kemudia rata- ratakan, Hitung molaritas larutan baku π‘π‘Ž2𝐸𝐷𝑇𝐴.
  • 3. Hitung molaritas larutan baku π‘π‘Ž2𝐸𝐷𝑇𝐴 Ulangi titrasi di atas sebanyak tiga kali, lalu rata-ratakan volume π‘π‘Ž2𝐸𝐷𝑇𝐴 yang digunakan Titrasi dengan larutan π‘π‘Ž2𝐸𝐷𝑇𝐴 0,01M sampai terjadi perubahan warna menjadi ungu, dan catat volume π‘π‘Ž2𝐸𝐷𝑇𝐴 yang digunakan Tambahkan 1mL larutan penyangga pH 12, dan 50mg indikator maurexide, larutan akan berwarna merah keunguan Masukkan 10mL larutan standard kalsium karbonat (πΆπ‘ŽπΆπ‘‚3) ke dalam labu erlenmeyer
  • 4. β€’ Masukkan 25mL sampel air ke dalam labu erlenmeyer 250mL, β€’ Tambahkan 1-2mL larutan penyangga pH 10 Β± 0,1 β€’ Masukkan 50mg indikator EBT β€’ Titrasi dengan larutan EDTA 0,01M sampai larutan berubah warna menjadi biru β€’ Catat volume EDTA dan ulangi titrasi sebanyak tiga kali, lalu rata-ratakan.
  • 5. Masukkan 25mL sampel air ke dalam Labu Erlenmeyer 250mL Tambahkan 1-2mL larutan NaOH 0,1N hingga Ph sekitar 12-13 Apabila sampel air keruh, tambahkan 1mL larutan KCN 10% Bubuhkan 50mg indikator Maurexide dan lakukan titrasi dengan larutan EDTA 0,01M sampai warna larutan menjadi ungu Catat volume EDTA. Ulangi titrasi sebanyak tiga kali, dan rata-ratakan volume EDTA yang digunakan.
  • 6. Masukkan 10mL larutan standard NaCl 0,0141 N ke dalam labu erlenmeyer 250mL Teteskan 1mL larutan 𝐴𝑔2πΆπ‘Ÿπ‘‚4 5%. Titrasi dengan larutan 𝐴𝑔𝑁𝑂3 0,0141N, hingga berwarna merah bata Ulangi langkah disamping menggunak an air suling sebagai larutan blanko Catat 𝐴𝑔𝑁𝑂3 yang digunakan, lalu hitung normalitas 𝐴𝑔𝑁𝑂3.
  • 7. Masukkan 100mL sampel air ke dalam labu erlenmeyer Tambahkan 1mL 𝐾2πΆπ‘Ÿπ‘‚4 5% Titrasi dengan larutan 𝐴𝑔𝑁𝑂3 0,0141 N sampai terbentuk endapan merah bata permanen Ulangi langkah diatas menggunakan air suling sebagai larutan blanko lalu catat volume 𝐴𝑔𝑁𝑂3 yang digunakan.
  • 8. Masukkan 25mL larutan 𝐾𝐻(𝐼𝑂3)2 ke dalam labu erlenmeyer Tambahkan 1g KI dan 10mL asam sulfat (1:9), lalu tambahkan air suling sampai terisi penuh Titrasi dengan larutan natrium tiosulfat hingga larutan berwarna kuning muda Tambahkan indikator kanji, sehingga larutan menjadi berawarna biru Titrasi kembali hingga warna biru larutan hilang. Catat volume larutan natrium tiosulfat yang digunakan. Hitung normalitas (π‘π‘Ž2𝑆2𝑂3)
  • 9. Masukkan 100mL sampel air ke dalam labu erlenmeyer Tambahkan 1mL larutan akali iodida dan 1mL larutan kanji Larutan akan menjadi biru Titrasi dengan larutan natrium tiosulfat 0,025 N sampai warna larutan hilang Catat volume π‘΅π’‚πŸπ‘ΊπŸπ‘ΆπŸ‘ yang digunakan.
  • 10. Dik: 𝑉1 = 4,4mL BM πΆπ‘ŽπΆπ‘‚2 = 50 𝑉2 = 4,6 mL m sampel = 25mL π‘‰π‘Ÿπ‘Žπ‘‘π‘Žβˆ’π‘Ÿπ‘Žπ‘‘π‘Ž = 4,5mL M EDTA = 0,01M Dit: Kesadahan Total? JAWAB 𝑀𝑔 πΆπ‘ŽπΆπ‘‚2 𝐿 = 1000 5 Γ— 4,5 Γ— 0,01 Γ— 50 = 90 mg/l
  • 11. Dik: 𝑉1 = 1,5π‘šπ‘™ M EDTA = 0,01 M 𝑉2 = 1,5π‘šπ‘™ βˆ† Ca = 40 Dit: Kesadahan πΆπ‘Ž2+ ? JAWAB 𝑀𝑔 πΆπ‘Ž 𝐿 = 1000 25 Γ— 0,5 Γ— 0,01 Γ— 40 = 24 mg/l
  • 12. Dik: A = 100 mg CaCl/L M EDTA = 0,01 M B = 25 mg Ca/L Ar Mg = 24 V EDTA = 3mL Dit: Kesadahan 𝑀𝑔2+ ? JAWAB 𝑀𝑔 𝑀𝑔 𝐿 = 1000 25 Γ— 3 Γ— 0,01 Γ— 24 = 28,8 mg/l
  • 13. Dik: 𝑉1 = 4,7mL π‘‰π‘π‘™π‘Žπ‘›π‘˜π‘œ = 1,1mL 𝑉2 = 4,7mL konsentrasi βˆ†π΄π‘”π‘π‘‚3 = 0,0123mL π‘‰π‘Ÿπ‘Žπ‘‘π‘Žβˆ’π‘Ÿπ‘Žπ‘‘π‘Ž = 4,7mL N 𝐴𝑔𝑁𝑂3 = 0,0123 mL sampel = 100mL Dit: Penetapan ion klorida? JAWAB 𝐢𝑙 𝑀𝑔 𝐿 = 4,7 βˆ’ 1,1 Γ— 0,0123 Γ— 35,45 Γ— 1000 100 = 1569,726 100 = 15,69726 mg/l
  • 14. Dik: V = 8,9mL Dit: Sisa klor ? mL sampel = 25mL M π‘π‘Ž2𝑆2𝑂3 = 0,1 M JAWAB 𝑀𝑔 𝐿 = 8,9 Γ— 0,1 Γ— 1000 Γ— 35,45 25 = 1262,02 mg/l
  • 15. No Parameter Unit Standar Baku Mutu (Kadar Maksimum) 1 Klorida (Cl) Mg/L 600 No Parameter Unit Standar Baku Mutu (Kadar Maksimum) 1 Klorida (Cl) Mg/L 600 2 Sisa Klor Mg/L 0,03 Standar baku mutu Klorida (Cl) dari Peraturan Gubernur Standar baku mutu Klorida (Cl) dan Klorin bebas menurut Peraturan Pemerintah Republik Indonesia Nomor 82 Tahun 2001 Tentang Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air No Parameter Unit Standar Baku Mutu (Kadar Maksimum 1 Kesadahan Mg/L 500 Standar baku mutu Kesadahan menurut Peraturan Menteri Kesehatan Republik Indonesia Nomor 32 Tahun 2017
  • 16. Β» Dapat dilihat pada perhitungan bahwa kesadahan total yang dihitung masih memenuhi baku mutu yang telah ditetapkan. Β» Kesadahan πΆπ‘Ž2+ yang ada dalam perhitungan memenuhi standar baku mutu Β» Kesadahan 𝑀𝑔2+ yang dihitung memenuhi standar baku mutu kesadahan yang telah ditetapkan
  • 17. Β» Kandungan Ion Klorida dalam perhitungan memenuhi standar baku mutu, baik dalam Pergub maupun Peraturan Pemerintah Β» Dari perhitungan sisa khlor yang mencapai 1262,02 mg/L dapat dikatakan bahwa sisa khlor tidak memenuhi baku mutu, karena melebihi dari angka yang disarankan. Dampak dari berlebihnya khlor ini yaitu tingginya tingkat keasinan perairan dan juga rusaknya ozon karena penguapan zat klorin, sementara pada tubuh menyebabkan sesak nafas dan juga iritasi saluran pernapasan.