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ASSESMEN KOGNITIF PERHITUNGAN KIMIA

Authored by Junando Pandiangan

Chemistry

11th Grade

Used 4+ times

ASSESMEN KOGNITIF PERHITUNGAN KIMIA
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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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