jhgjggjkjkhkj

jhgjggjkjkhkj

4th Grade

45 Qs

quiz-placeholder

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jhgjggjkjkhkj

jhgjggjkjkhkj

Assessment

Quiz

Chemistry

4th Grade

Practice Problem

Hard

Created by

MGMP KIMIA Kelompok 1

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45 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Unsur Cl mempunyai dua isotop di alam, yaitu 35 Cl dan 37Cl dengan kelimpahan masing - masing 75,53% dan 24,47%. Massa atom 35 Cl sebesar 37,97 dan massa atom 37Cl sebesar 36,97. Massa atom relatif Cl adalah…

33,47
34,35
35,46
36,64
37,97

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Massa molekul relatif senyawa Al2(SO4) sebesar.... g/mol. (Ar: Al = 27, S = 32, O = 16)

187
203
262
342
374

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Senyawa xenon flourida (XeFn) mengandung 18 . 10^20 molekul dengan massa sebesar 0,564 gram. Nilai n yaitu… ( L = 6 x 10^23, Ar : Xe = 131, F = 19)

1
2
3
4
5

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Volume gas hidrogen sebanyak 3,5 gram pada suhu 25 derajat C dan tekanan 1 atm adalah . . . L

39,2
42,0
64,4
78,4
84,0

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sebanyak 200mL larutan NaCl mengandung molekul sebanyak 1,806 x 1022 partikel. Konsentrasi larutan NaCl adalah ... M

0,05
0,10
0,15
0,20
0,25

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sebanyak 6 gram gas hidrokarbon mempunyai massa 4,8 L (RTP). Massa molekul relatif gas hidrokarbon tersebut sebesar

30
40
42
44
45

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jumlah atom karbon yang dikandung oleh 0,5 gram gula tebu (C12H22O11) adlah.... (Ar:C=12,H=1, O=16, dan L=6,02.10^ 23)

1,08 . 10^22
3,20 . 10^22
9,03 . 10^22
1,08 . 10^23
9,03 . 10^23

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