after mid sem 2 XI
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
NH4OH ditambah tiga tetes metal merah, kemudian dititrasi dengan larutan asam klorida. Persamaan reaksi yang terjadi sebagagai berikut :
NH4OH + HCl ↔ NH4Cl + H2O
Berdasarkan pernyataan tersebut, zat yang berfungsi sebagai titrat adalah
air
metil jingga
asam klorida
amonium klorida
amonium hidroksida
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada akhir titrasi antara larutan asam asetat dengan larutan kalium hidroksida dapat diketahui dengan perubahan warna indikator. Indikator yang sesuai adalah
brom timol biru
fenolftalein
metil merah
kresol ungu
metil jingga
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan CH3COOH sebanyak 20 mL dititrasi dengan Ba(OH)2 0,1 M dengan data sebagai berikut.
Berdasarkan data tersebut konsentrasi larutan CH3COOH adalah
0,075 M
0,1 M
0,15 M
0,2 M
0,3 M
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan sebuah kurva titrasi asam basa hasil percobaan untuk menentukan konsentrasi larutan NaOH 20 mL berikut ini!
Jika asam yang digunakan untuk titrasi adalah HCl 0,1 M, maka konsentrasi larutan NaOH yang dititrasi sebesar
0,1 M
0,2 M
0,3 M
0,4 M
0,5 M
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Seorang siswa melakukan titrasi asam basa, dengan menggunakan 25 mL larutan CH3COOH 0,1M dengan larutan NaOH 0,1 M. Maka perubabahan volume larutan NaOH yang ditambahkan menyebabkan perubahan grafik seperti berikut …
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rumusan hasil kali kelarutan (Ksp) dari reaksi Ag2CO3 ↔ 2 Ag+ + CO32- dinyatakan sebagai
[ Ag] [CO3]
[ Ag+] [CO32-]
[ Ag+]2 [CO32-]
[ Ag+]2 [CO2-]
[ Ag+] [CO32-]2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bila kelarutan PbCl2 dinyatakan dalam x mol l-1 , maka Ksp zat itu adalah
x2
4x3
27x
27x3
1/4 X3
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