Ulangan Harian Larutan Penyangga
Quiz
•
Chemistry
•
11th Grade
•
Hard
Cicih Juarsih
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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Berdasarkan data tersebut, yang termasuk larutan penyangga adalah ....
P dan Q
Q dan R
R dan S
R dan T
S dan T
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Campuran
larutan - larutan berikut yang merupakan larutan penyangga adalah ....
NaOH + CH3COONa
KOH + KCl
HBr + NaBr
HCl + NH4Cl
NH3 + NH4Br
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Terdapat campuran H2CO3 dan KHCO3. Campuran tersebut mempunyai pH konstan, kecuali terhadap pengaruh ....
Penambahan air 5 kali
Penambahan sedikit asam kuat
Penambahan sedikit basa kuat
Penambahan sedikit basa lemah
Penambahan asam kuat yang banyak
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Sebanyak 50 mL larutan CH3COOH 0,1 M (Ka=2.10-5) dicampurkan dengan 100 mL larutan CH3COONa 0,1 M. pH larutan yang terbentuk adalah....
5
6
7
8
9
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Harga pH dari larutan NH4OH 0,01 M yang dicampur dengan 100 mL larutan NH4Cl 0,05 M sebanyak 100 mL (Kb=10-5) adalah ....
6-log 2
6
8
8 + log 2
8 + log 3
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Di antara pernyataan berikut yang merupakan fungsi larutan penyangga dalam tubuh manusia, adalah ....
Menjaga kesetimbangan cairan yang ada di luar dan di dalam sel
Menjaga pecahnya pembuluh darah
Menjaga pH darah agar tidak banyak berubah
Menjaga masuknya cairan ke dalam sel
Menjaga masuknya pelarut melalui selaput semipermeabel
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Larutan penyangga dapat dibuat dengan pencampuran berikut, kecuali ....
asam lemah berlebih dengan basa kuat
basa lemah dan garamnya
garam asam lemah berlebih dan asam kuat
asam lemah dan basa lemah
basa lemah dan asam konjugasi
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