Buffer dan Titrasi
Quiz
•
Chemistry
•
11th Grade
•
Medium
Ahmad Fauzi
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berikut data hasil titrasi larutan HCl dengan larutan NaOH 0,1 M.
Berdasarkan data tersebut, konsentrasi larutan HCl adalah...
0,070 M
0,075 M
0,080 M
0,133 M
0,143 M
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berikut diberikan sebuah kurva titrasi asam basa hasil percobaan untuk menentukan konsentrasi larutan NaOH 20 mL.
Jika asam yang digunakan untuk titrasi adalah HCl 0,1 M, tentukan konsentrasi larutan NaOH yang dititrasi!
0,1 M
0,2 M
0,3 M
0,4 M
0,5 M
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan grafik titrasi asam-basa diatas!
Jika volume larutan yang dititrasi sebanyak 10 mL maka konsentrasi larutan basa LOH itu adalah...
0,25 M
0,125 M
0,1 M
0,075 M
0,025 M
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sebanyak 2 gram cuplikan NaOH dilarutkan dalam 250 mL air kemudian 20 mL dari larutan ini dititrasi dengan larutan HCl 0,1 M, diperoleh data diatas:
Kadar NaOH dalam cuplikan tersebut adalah....(Mr NaOH = 40)
20%
25%
40%
62,5%
75%
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan data hasil uji terhadap 2 jenis larutan dengan menggunakan 4 jenis indikator!
Perkiraan pH untuk larutan X dan larutan Y secara berurutan adalah ….
3,2 – 4,4 dan 5,8 – 8,3
4,4 – 4,8 dan 4,7 – 5,4
4,8 – 5,4 dan 4,4 – 4,8
4,7 – 8,3 dan 3,2 – 4,0
8,3 – 14,0 dan 3,2 – 4,2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan data hasil titrasi antara Ba(OH)2 dengan larutan asam asetat 0,15 M berikut!
PercobaanVolume Ba(OH)2Volume CH3COOH 0,15 M130 mL39,8 mL230 mL40,0 mL330 mL40,2 mL
Berdasarkan data tersebut, massa Ba(OH)2 yang bereaksi adalah … (Ar Ba = 56 gram.mol−; O = 16 gram.mol−; H = 1 gram.mol−).
0,54 gram
0,30 gram
0,27 gram
0,15 gram
0,10 gram
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui data beberapa indikator dan trayek pH.
Berikut ini adalah kurva titrasi asam-basa.
Pasangan asam-basa/basa-asam dan indikator yang digunakan berturut-turut adalah ….
KOH – CH3COOH – fenolftalein
KOH – HCl – fenolftalein
CH3NH3 – HCl – metil jingga
NH4OH – CH3COOH – metil jingga
NaOH – HCl – fenolftalein
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