PH stoikiometri 2

PH stoikiometri 2

10th Grade

11 Qs

quiz-placeholder

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PH stoikiometri 2

PH stoikiometri 2

Assessment

Quiz

Science, Chemistry

10th Grade

Practice Problem

Medium

Created by

Lina Yohana

Used 2+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

angka koefisien reaksi menyatakan perbandingan

a) massa zat yang bereaksi

b) volume gas-gas yang bereaksi

c)mol zat yang bereaksi

d)molekul zat yang bereaksi

a,b,c,d

a,b,c

a,b,d

a,c,d

b,c,d

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

"Dalam sistem tertutup, Massa zat sebelum dan sesudah reaksi akan tetap". Pernyataan tersebut merupakan bunyi hukum?

Hukum Kekekalan Massa

Hukum Perbandingan Tetap

Hukum Avogadro

Hukum Dalton

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Berapa massa molekul relatif (Mr) dari C2H5OH? Ar C= 12, O= 16, H= 1

45

46

29

36

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Berapa jumlah atom/partikel dari 0,5 mol atom Na ?

3,01 x 10^23

3,01 x 10^16

30,1 x 10^12

30,1 x 10^23

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Tetapan Avogadro : L = 6,02 x 1023 dan Ar : C = 12, O = 16, maka 22 gram gas karbon dioksida mengandung ….

1,32 x 1021 molekul

3,01 x 1021 molekul

6,02 x 1024 molekul

3,01 x 1023 molekul

6,02 x 1023 molekul

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Gas CO2 dialirkan ke dalam larutan jenuh Ca(OH­­)2 hingga terjadi reaksi :
Ca(OH)2 (aq) + CO2 (g) \rightarrow   CaCO3 (s) + H2O (l)
Jika gas CO2 yang telah bereaksi sebanyak 0,1 mol, maka endapan CaCO3 yang terbentuk adalah .... \cdot  

100 g

74 g

50 g

44 g

10 g

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Untuk pembakaran 4 mol gas butana secara

Sempurna menurut reaksi

C4H10 (g) + O2 (g) à CO2 (g) + H2O (g)

diperlukan gas oksigen sebanyak :

6,5 mol

8 mol

16 mol

26 mol

32 mol

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