POST TEST

POST TEST

10th Grade

10 Qs

quiz-placeholder

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POST TEST

POST TEST

Assessment

Quiz

Chemistry

10th Grade

Practice Problem

Hard

Created by

Tessa Noviri

Used 2+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Apa yang dimaksud dengan massa atom relatif? 

massa rata - rata 1 atom unsur tersebut dibandingkan dengan massa rata - rata 1 atom karbon - 12 Massa rata-rata dari isotop X yang ada di alam.

massa rata - rata 1 atom unsur tersebut dibandingkan dengan 12 kali massa rata - rata 1 atom karbon – 12

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Apa yang dimaksud dengan massa molekul relatif? 

Massa satu atom.

Massa beberapa senyawa.

Massa seluruh atom yang menyusun molekul.

Massa unsur.

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jika massa 1 atom X = p gram , massa 1 atom C-12 = q gram, maka Ar X adalah....

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

perbandingan massa rata-rata satu atom unsur tersebut dengan massa satu atom isotop C-12 disebut ....

Massa atom relative

Massa molekul relative

Jumlah zat yang mengandung 6,02 x 1023

Massa molar.

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Bila massa atom C-12 adalah 2 x 10 -26 kg dan massa satu atom Magnesium adalah 4 x 10-26 kg, maka massa atom relatif dari Mg adalah ….

12

24

36

48

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Klorin terdiri atas dua jenis isotop, yaitu Cl-35 dan Cl-37 dengan kelimpahan masing-masing berturut-turut adalah 75% dan 25%. Maka berapa massa atom relatif (Ar) dari klorin tersebut ....

36

35,8

35,6

35,5

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Tentukan berapa besarnya nilai Mr dari (NH4)2SO4 jika diketahui Ar N = 24, H = 1, S = 32 dan O = 16?

187

120

132

123

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