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Asesmen Sumatif Konsep Mol dan Perhitungan Kimia

Authored by Sri Adelni Peliana, S.Si

Chemistry

11th Grade

Used 4+ times

Asesmen Sumatif Konsep Mol dan Perhitungan Kimia
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

Perhatikan reaksi berikut !

aAl(s) + bH2SO4 (aq)cAl2(SO4)3 (aq) + dH2 (g)

Agar reaksi tersebut setara, nilai koefisien a, b, c, dan d berturut-turut adalah…

2, 3, 3, dan 1

2, 3, 1, dan 3

2, 1, 3, dan 3

3, 2, 1, dan 3

2.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

Massa 0,5 mol Ag3PO4 jika diketahui Ar Ag = 108 g mol-1, P = 31 g mol-1, dan O = 16 g mol-1 adalah…

104,75 g

209,5 g

419 g

1.047,5 g

3.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Volume 8,8 g karbon dioksida (CO2)pada 0oC dan 1 atm adalah… (Ar C =12 g mol-1, dan O = 16 g mol-1)

2,24 L

4,48 L

5,60 L

8,96 L

4.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Jumlah molekul dari 0,32 gram SO2 adalah…

(Diket : Ar S = 32, Ar O = 16)

6,022 x 1020 molekul

3,011 x 1021 molekul

3,011 x 1022 molekul

6,022 x 1023 molekul

5.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Pada suhu 27oC dan tekanan 0,5 atm volume 16 gram gas SO3 (Mr = 80 g mol-1) sebesar…

R = 0,082 L atm mol-1 K-1

0,984 L

9,84 L

0,492 L

4,92 L

6.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Rumus empiris dari senyawa yang terdiri atas   45,1 % nitrogen, 38,8% karbon, dan 16,1% hidrogen adalah…

(Diket : Ar N = 14, C =12, H = 1)

CH2N2

CH5N

C2H4N

CH4N

7.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Pirimidin tersusun tersusun dari 60% karbon, 5% hydrogen, dan sisanya nitrogen (Ar H = 1, C = 12, dan N =14) jika massa molekul relatif pirimidin adalah 80, maka rumus molekulnya adalah...

C2H2N

C4H4N2

C6H6N3

C3H2N4

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