Chemistry Questions

Chemistry Questions

6 Qs

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Chemistry Questions

Chemistry Questions

Assessment

Quiz

Science

Practice Problem

Hard

Created by

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Berapa gram massa 2 mol gas amonia (NH3), jika diketahui Ar N = 14 dan H= 1

28

32

34

36

2.

MULTIPLE CHOICE QUESTION

10 mins • 10 pts

Logam magnesium direaksikan dengan asam klorida sehingga terjadi 2,8 liter gas hidrogen (STP). Hitunglah massa logam Mg yang bereaksi dengan HCl!

8 g

5 g

4 g

2 g

3.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Senyawa Asam Sulfat massa 49 gram direaksikan dengan 20 gram Natrium Hidroksidaa. Berapakah mol pereaksi yang bersisa?

0.25 mol

0,5 mol

1 mol

2 mol

4.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Senyawa Asam Sulfat massa 49 gram direaksikan dengan 20 gram Natrium Hidroksida, dengan persamaan reaksi H2SO4 + NaOH ---> Na2SO4 + H2O   Berapakah gram Na2SO4 yang dihasilkan?

20 g

35 g

35,5 g

55 g

5.

MULTIPLE CHOICE QUESTION

10 mins • 10 pts

Jika reaksi antara 6 gram etana, C2H6 (Mr = 30) dengan 7,1 gram Cl2 (Mr = 71) menghasilkan 5,16 gram C2H5Cl (Mr = 64,5) dengan persamaan reaksi C2H6 + Cl2 → C2H5Cl + HCl, tentukan persentase rendemen etil klorida

50%

60%

70%

80%

6.

MULTIPLE CHOICE QUESTION

10 mins • 10 pts

Untuk menentukan air kristal terdapat dalam senyawa CuSO4. x H2O, maka 4,99 gram CuSO4. x H2O dipanaskan hingga membentuk CuSO4 anhidrat (CuSO4 tidak mengandung air) sebanyak 3,19 gram. Berapa jumlah air kristal dalam CuSO4. x H2O?

5

6

7

8

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