UjiKompetensiKP2

Quiz
•
Chemistry
•
11th Grade
•
Easy
Dea deananda.2023
Used 9+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
1. Sebanyak 100 mL larutan NaOH 0,5 M ditambahkan larutan naftol AS hingga mencapai volume 400 mL. pH NaOH setelah ditambahkan larutan naftol AS adalah....
a.13
b.12,9
c.1,08
d.13 ,09
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
2. Larutan HNO₃ di dalam air memiliki pH 2. Untuk menghasilkan larutan HNO₃ dengan pH 4, pengenceran larutan harus dilakukan sebanyak ....
a. 5 kali
b. 10 kali
c. 50 kali
d. 100 kali
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
3. Diketahui suatu larutan HCN mempunyai konsentrasi 0,15 M. Berapakah pH larutan tersebut....
(Ka = 5 × 10⁻¹⁰)
a. 5
b. 9
c. 8,94
d. 5,06
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
4. Sebanyak 100 mL larutan HCl 0,1 M ditambahkan air hingga mencapai volume 250 mL. Perubahan nilai pH larutan HCl setelah diencerkan adalah....
a. 2 menjadi 3 - log 25
b. 1 menjadi 1 - log 25
c. 1 menjadi 2 - log 4
2 menjadi 3 - log 4
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
5. Larutan HCl ditambahkan dalam proses fiksasi zat warna indigosol. Sebanyak 7,2 gram HCl direaksikan dengan air hingga mencapai volume 2500 mL yang kemudian dijadikan bahan fiksasi zat warna indigosol. pH larutan HCl yang dibuat adalah.... (Ar H = 1 g/mol, Cl = 35,5 g/mol)
a. 12 – log 7,888
b. 12 + log 7,888
c. 12 – log 8
d. 2 + log 7,888
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
6. Jika Ba(OH)₂ dianggap terionisasi sempurna dalam air, pH larutan 2 L Ba(OH)₂ 0,2 M adalah ....
a. 13,8
b. 13,6
c. 13,4
d. 12,6
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
7. Berikut ini yang merupakan senyawa asam lemah dan basa lemah adalah....
a. H₂CO₃, CH₃COOH, NH₄OH
b. HNO₃, CH₃COOH, NH₄OH
c. H₂CO₃, CH₃COOH, NaOH
d. H₂CO₃, HClO₄, NH₄OH
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