
RUMUS EMPIRIS DAN MOLEKUL
Authored by callista najwah
Chemistry
10th Grade
Used 65+ times

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17 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Suatu senyawa mempunyai rumus empiris CHO2. Mr senyawa tersebut adalah 90. Maka rumus molekul senyawa tersebut adalah ...
C2H2O4
C2H4O2
C4H4O2
C2H4O4
C4H2O8
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika suatu zat tersusun dari 9,2 gram Natrium , 2,4 gram Karbon , dan 9,6 gram Oksigen . Rumus empiris zat tersebut adalah ... ( Ar Na = 23, C = 12 , O = 16 )
NaC2O3
NaCO3
Na2CO3
Na2C2O3
Na2C2O5
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika suatu zat memiliki rumus empiris CH2O. Jika Massa molekul relatif zat tersebut adalah 60. Rumus Molekul zat tersebut adalah ... ( Ar C = 12, H =1 , O = 16 )
CH2O
C2H4O
C3H6O2
C3H6O3
C2H4O2
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Suatu gas hidrokarbon tersusun dari 80% atom karbon dan sisanya hidrogen . Dalam 3 gram gas tersebut terdapat 6,02 x 1022molekul.Jika Ar C= 12, H = 1. Rumus Molekul Hidrokarbon tersebut adalah ...
CH2
CH3
C2H4
C2H6
C3H9
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dalam 3 gram suatu senyawa karbon terdapat 1,2 gram Karbon ; 0,2 gram Hidrogen dan sisanya oksigen. Tentukan Rumus Empiris senyawa tersebut ... (Ar H = 1, C = 12 , O = 16 )
CH3O
C2H2O
CH2O
CH2O2
C2H2O2
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Senyawa dengan rumus empiris CH2O memiliki Mr = 60 . Rumus Molekul senyawa tersebut adalah ...
C4H2O4
C2H4O4
C3H6O8
C2H4O2
C3H4O4
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Suatu senyawa Hidrokarbon mengandung 24 gram C dan 6 gram H . Tentukan rumus molekul senyawa tersebut jika diketahui Mr= 30 ! (Ar C = 12 , H = 1 )
C2H4
C4H2
C6H2
C3H5
C2H6
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