
ASESMEN HARIAN ASAM BASA
Authored by Darniati Darni
Chemistry
11th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui reaksi:HCOOH + HNO2 ↔HCOOH2+ + NO-2
Pasangan asam basa konyugatnya adalah …
HNO2 dan NO2-
HCOOH dan NO-2
HCOOH dan HNO2
NO-2 dan HCOOH2+
HCOOH dan HCOOH2+
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Molekul NH3 memiliki kemampuan untuk berikatan dengan molekul BF3.pernyataan yang benar dari fenomena tersebut adalah …
Ikatan yang terjadi adalah ikatan ion
F3
NH3 bersifat sebagai basa Lewis
BF3 bersifat sebagai asam Arrhenius
ikatan yang terjadi adalah kovalen rangkap dua
ikatan yang terjadi adalah kovalen koordinasi dengan sumbangan pasangan elektron dari BF3
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
harga PH sampel air limbah X adalah …
PH ≤ 8,3
PH ≤ 6,3
PH ≥ 8,3
PH ≥ 6,3
PH ≥ 10
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Berdasarkan tabel di atas, dapat ditarik kesimpulan bahwa urutan kekuatan asam yaitu …
HC > HF > HG > HE > HI > HA > HD > HB
HB > HD > HA > HI > HE > HG > HF > HC
HF > HD > HA > HI > HE > HG > HC > HB
HB > HC > HF > HG > HE > HI > HA > HD
HG > HE > HI > HA > HD > HB > HC > HF
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suatu indikator lakmus merah memberi warna biru pada larutan kapur sirih.indikator ini akan berwarna biru juga dalam …
Oralit
garam dapur
air jeruk
air sabun
larutan gula
larutan garam dapur
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
aspirin adalah obat penghilang rasa nyeri yang mengandung asam asetil salsilat dengan tetapan ionisasi ( Ka ) 3 x 10-4.jika 0,3 mol aspirin dilarutkan dalam air hingga 100 ml maka PH Larutan aspirin tersebut adalah …
12 + log 3
4 – log 3
3 - log 4
3 – log 2
2 – log 3
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kalsium hidroksida ca ( OH )2 adalah senyawa kimia anorganik yang berbentuk padatan kristal putih, tidak berbau dan memiliki rasa pahit. Jika 0,74 gram Ca(OH)2(Mr= 74) dalam 2 Liter air mempunyai harga PH …
13 – log 2
12 + log 2
2 – log 2
12
2
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