Ulangan Harian Stoikiometri Kelas X

Ulangan Harian Stoikiometri Kelas X

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Ulangan Harian Stoikiometri Kelas X

Ulangan Harian Stoikiometri Kelas X

Assessment

Quiz

Chemistry

10th Grade

Practice Problem

Medium

Created by

Ghina Yusriya Mardiyah

Used 51+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Suatu unsur X mempunyai dua isotop di alam, yaitu X-63 dan X-65. Jika massa atom relatif X adalah 63,5; maka kelimpahan isotop X-65 di alam adalah....

10%

20%

25%

50%

75%

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Bila massa suatu atom C-12 adalah 1,99 x 10-23 gram dan Ar X = 60, maka massa rata-rata 1 atom X adalah....

9,95 x 10-23 gram

1,19 x 10-22 gram

3,02 x 10-22 gram

2,39 x 10-24 gram

3,98 x 10-24 gram

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jumlah atom besi di dalam sepotong besi yang mempunyai massa 112 gram adalah.... (Ar Fe = 56)

6,02 x 1024 atom

6,02 x 1022 atom

3,01 x 1022 atom

3,01 x 1023 atom

1,204 x 1024 atom

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Bila massa gas CO2 adalah 11 gram, maka volume gas CO2 pada keadaan STP adalah.... (Ar C = 12, O = 16)

5,6 liter

0,25 liter

1 liter

1,12 liter

4 liter

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Bila gas hidrogen memiliki massa 1 gram, maka volume gas hidrogen yang diukur pada suhu 25 dan tekanan 1 atm adalah....

10 liter

12,2 liter

15 liter

11,8 liter

12 liter

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Dalam suatu ruangan terdapat gas NO yang memiliki volume 5,6 liter. Jika diketahui Ar dari masing-masing unsurnya, massa gas NO adalah.... (Ar N = 14, O = 16)

4 gram

1 gram

0,5 gram

5 gram

7,5 gram

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Suatu senyawa mengandung 23,3% unsur Co; 25,3% Mo; dan 51,4% Cl. Rumus empiris senyawa tersebut adalah…

Co3Mo2Cl12

Co3Mo2Cl11

Co4Mo2Cl11

Co2Mo3Cl12

Co2Mo3Cl11

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