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Remedial Kadar Zat

Authored by halima arahman

Chemistry

10th Grade

Used 48+ times

Remedial Kadar Zat
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10 questions

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1.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Suatu unsur senyawa dengan Mr = 40 mengandung 90% unsur karbon dan 10% unsur hidrogen. maka rumus molekul senyawa tersebut adalah.... Ar C = 12, Ar O =16

C2H4

C3H4

C2H6

C3H6

C4H6

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Persen besi yang terdapat di dalam FeSO4, jika diketahui Ar Fe = 56, Ar S = 32, Ar O = 16 adalah....

36,84%

40%

73,68%

80%

90%

3.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Kadar sulfur dalam pupuk ZA (NH4)2SO4 adalah.... Ar N =14, S = 32, H =1, O = 16.

12,12%

24,24%

36,36%

48,48%

60,60%

4.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Di dalam udara kering yang bersih terdapat gas karbon dioksida sebanyak 0,03% volume. maka kadar gas tersebut dalam bpj (ppm) adalah....

3 bpj

30 bpj

300 bpj

3000 bpj

30000 bpj

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Zat penyedap masakan (MSG) merupakan senyawa yang mengandung nitrogen dengan kadar 9%. jika massa molar (Mr) MSG = 155 gram/mol, maka jumlah atom nitrogen dalam setiap molekul MSG adalah .... Ar N = 14

1

2

3

4

5

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Massa oksigen di dalam senyawa oksida XO3 adalah 60%. Jika Ar O =16, Ar X adalah....

120

60

48

32

24

7.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Volume alkohol (dalam mL) yang terlarut dalam 1000 mL larutan alkohol yang memiliki kadar 40% adalah.....

200 mL

300 mL

400 mL

500 mL

600 mL

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