
Wacana 1 - test 2
Authored by Nindya Kartikawati
Chemistry
10th Grade
Used 1+ times

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5 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Berapa nilai elongasi (%) dari plastik biodegradable dengan plasticizer sorbitol?
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Berapa nilai degradasi (%) plastik biodegradable dengan plasticizer sorbitol?
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Berapa lama larutan bekatul dipanaskan sebelum ditambahkan plasticizer?
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Sebutkan langkah-langkah dalam proses pembuatan plastik biodegradable dari bekatul padi!
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Answer explanation
larutkan bekatul dalam aquades, tambahkan asam asetat, panaskan pada suhu 65 selama 15 menit. tambahkan plasticiser dan larutan kitosan, aduk selama 60 menit pada suhu 65 - 70. dicetak dan didiamkan pada suhu ruang hingga kering. analisis plastik biodegradable.
5.
OPEN ENDED QUESTION
3 mins • 1 pt
Sebutkan empat parameter uji karakteristik yang digunakan untuk mengevaluasi plastik biodegradable dalam penelitian ini!
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Answer explanation
kuat tarik, elongasi, swelling, degradasi
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