
Volumetri
Authored by SQA Andres
Science
Professional Development
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut yang BUKAN merupakan syarat reaksi pada volumetri adalah :
Reaksi harus berlangsung cepat
Harus ada perubahan fisika atau kimia pada titik ekivalen
Zat yang bereaksi harus dalam konsentrasi yang sama
Indikator harus menunjukkan titik akhir titrasi yang jelas
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manakah yang BUKAN merupakan syarat larutan standar primer :
Harus stabil
Mudah dikeringkan, tidak higroskopis
Mempunyai berat ekivalen yang rendah
Pengotor harus < 0.02 %
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diantara analisis berikut manakah yang merupakan titrasi asam basa :
Analisis NaOH dalam caustic soda
Analisis kadar kaporit
Analisis kadar alumina pada alum sulfat
Analisis Klorin bebas pada PAC
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Secara garis besar analisis metode gravimetri terbagi menjadi :
3 metode
4 metode
5 metode
6 metode
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Berapakah kadar NaOH dalam caustic soda jika diketahui :
Vol titrasi HCl : 35.1 mL
N HCl : 1.0250 N
BE NaOH : 40 gram/mol
FP : 10 X
Berat sampel : 29.6 mL
48.20
48.62
48
47.62
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manakah yang BUKAN merupakan larutan standar primer :
Calcium Carbonate ( CaCO3)
Sodium Carbonate ( Na2CO3 )
Hydrochloric Acid ( HCl )
Potassium Dikromate ( K2Cr2O7 )
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Berapakah kadar Na2CO3 dalam soda ash jika diketahui :
Vol titrasi HCl : 44.30 mL
N HCl : 0.5075 N
Be Na2CO3 : 53 gram/mol
Berat sampel : 1.2000 gram
99.10 %
99.20 %
99.30 %
99.40 %
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