
Asesmen Sumatif Konsep Mol dan Perhitungan Kimia
Authored by Sri Adelni Peliana, S.Si
Chemistry
11th Grade
Used 4+ times

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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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