
asikin aja cuyy

Quiz
•
Chemistry
•
University
•
Medium
JULI TAMBUNAN
Used 1+ times
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21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Siapa yang merumuskan panjang gelombang yang menjadi dasar pemikiran dari Spektrofotometer FTIR
Jean Baptiste joseph fourier
Perklin Elmer
Jaine connes
Francis William Aston
Nernst Glowers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika kedua spesi dalam kesetimbangan kimia menyerap, dan jika terjadi tumpang tindih kurva serapannya disebut
Deviasi kimia
Titik isosbestik
Interferogram tipikal
Polikromator
Deviasi instrumental
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Berikut ini yang bukan keuntungan FTIR yaitu
a. Penggunaanya rumit dan mahal
b. Akurasi panjang gelombang
c. Throughput dan jacquinot
d. Semua informasi dari panjang gelombang dikumpulkan bersamaan
Penggunaanya rumit dan mahal
Akurasi panjang gelombang
jacquinot
Semua informasi dari panjang gelombang dikumpulkan bersamaan
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bagaimana proses fluoresensi?
Zat menyerap energi – elektron tereksitasi (transisi) – elektron ke keadaan dasar (relaksasi) – memancarkan foton
Zat menyerap energi – elektron ke keadaan dasar (relaksasi) – elektron tereksitasi (transisi) – memancarkan foton
Zat memancarkan foton – elektron ke keadaan dasar (relaksasi) – elektron tereksitasi (transisi) – menyerap energi
Zat memancarkan foton – elektron tereksitasi (transisi) – elektron ke keadaan dasar (relaksasi) – menyerap energi
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cara untuk meminimalkan penyimpangan kimia, kecuali
Akuisisi waktu dengan cepat
Menambahkan zat pengompleks dalam jumlah besar
Penyesuaian kekuatan ion
Buffering yang memadai PH
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa saja gugus yang tidak mendukung fluoresensi?
-NO2, -COOH, -CH2COOH, -Br, -I, azo
-CH2COOH, -Br, -I, azo, -OH, -NH2
-NH2, -NO2, -COOH, -CH2COOH, -Br, -I
-OCH3, -NH2, -NO2, -COOH, -CH2COOH, -Br
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapa lama zat berpendar?
a. 0,5-20 ns
b. 0,05-0,2 ns
c. 0,5-2 ns
d. 0,05-20 ns
0,5-20 ns
0,05-0,2 ns
0,5-2 ns
0,05-20 ns
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