
ASSESMEN KOGNITIF PERHITUNGAN KIMIA
Authored by Junando Pandiangan
Chemistry
11th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
jumlah atom Oksigen dalam 5 molekul H3PO4 adalah...
5
9
20
15
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rumus kimia dari Kalium Dicromat adalah....
K2CrO4
CaCrO4
K2Cr2O7
CaCr2O7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jumlah mol dari 6 gram logam Mg adalah....(Ar Mg : 24)
0.25
0.5
4
2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Senyawa berikut yang memiliki massa molekul relatif 46 adalah....
(Ar C=12, O=16, H=1)
CO2
C2H5OH
CH3COOH
C3H8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan reaksi berikut :
aCa(OH)2 + bH3PO4 ----> cCa3(PO4) 2 + dH2O
bila disetarakan maka harga a + b adalah....
4
5
6
7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika Ar C = 12, N = 14, O = 16, H = 1, maka massa 0,2 mol Pupuk urea (CO(NH2)2) adalah…
12
15
30
60
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Massa NaOH yang terdapat dalam 500 mL larutan NaOH 0,5 M adalah… (Ar Na = 23 ; O = 16 ; H = 1)
5 gr
10 gr
15 gr
20gr
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