
VOLUMETRI aplication
Authored by 1.1 ratna wahyuni
Chemistry
Professional Development
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Natrium karbonat yang diperlukan untuk membuat 1000 ml larutan natrium karbonat 0,1000 N adalah….
Diketahui Ar Na = 23 C = 12 O = 16
0,5300 gram
5,3000 gram
5,3500 gram
5,3590 gram
5,3595 gram
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jumlah asam oksalat yang harus ditimbang untuk membuat 100 mL larutan asam oksalat 0.1 N adalah:
A. 1260 mg
B. 630 mg
C. 315 mg
D. 126 mg
E. 63.0 mg
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jumlah asam oksalat (dihidrat) yang harus ditimbang untuk membuat 50 mL larutan asam oksalat 0.05 N adalah:
Ar H = 1 C=12 O=16
A. 1575 mg
B. 630 mg
C. 315 mg
D. 157.5 mg
E. 31.5 mg
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Natrium karbonat yang diperlukan untuk membuat 200 ml larutan natrium karbonat 0,1000 N adalah…
Diketahui Ar Na = 23 C = 12 O = 16
A.
B.
C.
D.
1,8000 gram
1,0600 gram
14,7500 gram
1,4750 gram
1,4755 gram
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan HCl distandardisasi dengan larutan Ba(OH)2 0,0100 M. 10 mL larutan HCl memerlukan 10,00 mL larutan Ba(OH)2 untuk mencapai titik akhir dengan indikator bromokresol hijau. Normalitas HCl tersebut adalah:
A. 0.0050 N
B. 0.0025 N
C. 0.0100 N
D. 0.0200 N
E. 0.0400 N
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Massa Natrium Tetra Borat (Na2B4O7.10H2O) (Ar Na=23, B=11 , H=1, O=16) yang harus ditimbang untuk membuat larutan dengan konsentrasi 0,05M sebanyak 500 ml adalah…
0,505 gram
0,955 gram
5,050 gram
9,550 gram
95,500 gram
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
senyawa As2O3 digunakan dalam titrasi iodimetri yang direaksikan dengan NaOH menjadi Na3AsO3 , reaksin lebih lanjut dalam oksidimetri menghasilkan Na3AsO4, ekivalen As2O3 adalah..
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