
Gravimetri (Pendahuluan)
Quiz
•
Chemistry
•
10th Grade
•
Medium
Mita Nurhayati
Used 71+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prinsip analisis gravimetri didasarkan pada ...
massa jenis
konsentrasi zat
volume larutan
penimbangan zat
perhitungan molekul
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada percobaan penentuan kadar air secara gravimetri, metode yang digunakan adalah
Metode pencampuran
Metode pengendapan
Metode elektrolisis
Metode penguapan/pengeringan
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada percobaan gravimetri, alat-alat yang digunakan adalah ....
Timbangan analitik, alat pemanas, cawan krus, deksikator
Timbangan analitik, alat pemanas, cawan penguap, kondensor
Timbangan analitik , buret, labu ukur, deksikator
Timbangan teknis, alat pemanas, cawan krus, kondensor
Timbangan teknis, alat pemanas, cawan penguap, deksikator
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa fungsi desikator dalam gravimetri ?
Mengurangi udara
Menghilangkan kadar air dalam endapan
Mengatur pH endapan
Membersihkan endapan
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jumlah air dalam sampel setara dengan ....
massa endapan
massa sampel basah
berkurangnya berat
massa sampel kering
bertambahnya berat
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1) Membutuhkan timbangan yang sensitif
2) Mudah dilakukan
3) Presisi
4) Sensitif
5) Membutuhkan waktu yang lama
Yang merupakan kekurangan dari metode gravimetri adalah.....
1,3
3,2
5,1
5,2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Desikator biasa merupakan alat yang digunakan untuk mengurangi kadar air dengan dibagian bawah diberi zat higroskopis yaitu...
NaOH
Silica Gel
KOH
Resin
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