
SOAL PRETES UV-Vis
Quiz
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Chemistry
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University
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soja_sf upi.edu
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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Berikut ini urutan tata letak komponen dalam spektrofotometer adalah….
sumber sinar- detektor- monokromator- sel- read out
sumber sinar- monokromator- sel- detektor – read out
readout- sumber sinar- sel- detektor- monokromator
monokromator- detektor- readout- sel- sumber sinar
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Daerah kerja sinar UV terdapat pada panjang gelombang antara….
380 - 700 nm
190 - 380 nm
700 - 1200 nm
20 - 200 nm
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Sumber sinar untuk spektrofotometer sinar tampak (Visible) adalah lampu….
detrium
wolfram
merkuri
neon
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Detektor berfungsi untuk mendeteksi sinar yang….
diserap oleh sel
dipantulkan oleh sel
dibiaskan oleh sel
diteruskan oleh sel
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Monokromator bagian alat yang terdapat pada spektrofotometer, yang berfungsi untuk….
menseleksi senyawa yang akan di dianalisis
memilih serapan yang diinginkan
memperoleh sinar yang monokromatis
menseleksi sumber sinar
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kurva serapan dibuat dengan variable…
serapan vs konsentrasi
serapan vs energi
serapan vs panjang gelombang
serapan vs kecepatan cahaya
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Hubungan antara serapan dengan transmitansi dinyataan dalam rumus….
A = logT
A = Log %T
A = - log T
A = Log It/Io
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