ULANGAN TITRASI ASAM BASA DAN KSP
Quiz
•
Chemistry
•
11th Grade
•
Hard
Mal anul Aufiya
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika 20 mL HNO3 0,1 M dititrasi dengan larutan natrium hidroksida 0,2 M maka volume basa yang diperlukan untuk mencapai titik stoikiometri adalah ...
a. 10 mL
b. 20 mL
c. 25 mL
d. 30 mL
e. 50 mL
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Indikator yang paling tepat digunakan dalam percobaan titrasi HCl 0,1 M oleh NaOH 0,1 M adalah ...
a. metil merah (rentah pH: 3,5 – 4,8)
b. bromtimol biru (rentan pH: 6,0 – 8,0)
c. brom kresol hijau (rentang pH: 4,6 – 5,8)
d. fenolftalein (rentan pH: 8,0 – 10,0)
e. alizarin kuning (rentang pH: 10,0 – 12,5)
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Disajikan kurva titrasi larutan asam klorida dengan larutan kalium hidroksida seperti diatas:
Jika 20 mL larutan HCl dapat dinetralkan dengan larutan KOH 0,2 M, konsentrasi asam format tersebut adalah…
a. 0,1 M
b. 0,15 M
c. 0,20 M
d. 0,25 M
e. 0,30 M
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 0,52 gram basa L(OH)3 tepat habis bereaksi dengan 100 mL asam sulfat 0,1 M menurut persamaan reaksi berikut
L(OH)3 + H2SO4 → L2(SO4)3 + 2H2O
Massa atom relatif logam L adalah … (Ar O = 16, H = 1)
a. 13 g/mol
b. 27 g/mol
c. 78 g/mol
d. 156 g/mol
e. 52 g/mol
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 25 mL larutan asam oksalat dapat dinetralkan dengan larutan magnesium hidroksida 0,01 M. Jika volume larutan magnesium hidroksida yang dibutuhkan sebanyak 10 mL, pH larutan asam oksalat mula-mula adalah … (Ka H2C2O4 = 5 x 10-2)
a. 3 - log
b. 2 - log
c. 3 - log
d. 4
e. 12 + log
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan data titrasi antara larutan HCl dengan larutan Al(OH)3 0,1 M berikut.
konsentrasi HCl hasil titrasi adalah...
a.0,25 M
b. 0,50 M
c. 0,75 M
d. 0,10 M
e. 0,20 M
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Amonium hidroksida ditambah tiga tetes metil merah lalu dititrasi dengan larutan asam nitrit. Persamaan reaksi yang terjadi sebagai berikut :
NH4OH + HNO2 → NH4NO2 + H2O
Berdasarkan pernyataan tersebut, zat yang berfungsi sebagai titran adalah…
a. air
b. amonium nitrat
c. amonium hidroksida
d. aquadest
e. asam nitrit
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