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11th Grade

18 Qs

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Assessment

Quiz

Chemistry

11th Grade

Hard

Created by

I Yudana

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18 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jika massa atom relatif Ar : N = 14; H = 1 dan konstanta Avogadro = 6 × 1023, dalam 8 gram N2H4

 ada atom nitrogen sebanyak...atom

3 × 1023

6 × 1022

1.2 × 1023

1.5 × 1023

3 x 1022

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Berapa massa atom relatif dari atom O?

1

12

16

8

3.

MULTIPLE CHOICE QUESTION

2 mins • 10 pts

Berapa gram massa unsur oksigen dalam 11 gram karbon dioksida? (Ar C=12, O=16)

3 gram

11 gram

8 gram

4 gram

4.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

Jika diketahui Ar C=12, H=1, dan O=16, berapa gram massa 0,5 mol CH3COOH?

60 gram

30 gram

6 gram

3 gram

5.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

Berapa liter volume dari 3,5 gram larutan NH4OH (Ar N=14, O=16, H=1) bila diukur suhu 0oC pada tekanan 1 atm?

22,4 liter

2,24 liter

11,2 liter

1,12 liter

6.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

Hitunglah volume dari 3,2 gram gas O2 diukur pada suhu 27oC , 1 atm. (Ar O=16; R=0,082 L atm/mol K; T= ... + 273K)

2,46 liter

2,24 liter

4,92 liter

1,12 liter

7.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Berikut ini yang mengandung jumlah molekul terkecil adalah ... (Ar O=16, N=14, C=12, H=1)

2 gram N2

2 gram CH4

4 gram O2

8 gram CO2

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