Pre-Test Stoikiometri

Pre-Test Stoikiometri

9th - 12th Grade

20 Qs

quiz-placeholder

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Pre-Test Stoikiometri

Pre-Test Stoikiometri

Assessment

Quiz

Chemistry

9th - 12th Grade

Hard

Created by

Zulfa Hilmi Kautsar

Used 3+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mana dari besaran berikut yang setara dengan 1 mol?

1.01 x 1010 buah

2x1020 lusin

6.02 x 1023 butir

3.00 x 108 pasang

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika diketahui massa atom relatif (Ar) dari H=1, C=12, N=14, dan O=16, tentukan massa molekul relatif (Mr) dari senyawa C3H9NO!

60

75

90

42

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan massa dari 2 mol gas N2 jika diketahui Ar N=14 g/mol!

7 g

14 g

28 g

56 g

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan massa NaCl (Mr = 58.5 g/mol) yang perlu dilarutkan ke dalam 100 mL air untuk mendapatkan larutan NaCl dengan konsentrasi 0.1 M!

5.85 g

0.585 g

58.5 g

585 g

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suatu wadah berisikan 2 mol gas Helium (Ar=4 g/mol) bersuhu 27oC dengan tekanan 1 atm. Tentukan massa jenis dari gas di wadah tersebut!

8.00 g/L

0.16 g/L

49.2 g/L

0.08 g/L

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suatu campuran diketahui terdiri dari NaCl (Mr=58.5) dan KCl (74.5) dengan perbandingan mol 50:50. Tentukan massa total dari 1 mol campuran!

58.5 g

74.5 g

123 g

61.5 g

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan jumlah H2O yang dihasilkan apabila direaksikan 1 mol CH4 dan 1 mol O2! Diketahui reaksi: CH4 + 3O2 -> CO2 + 2H2O

1 mol

2 mol

0.33 mol

0.66 mol

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