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STOIKIOMETRI 2

Authored by dwi maryam

Chemistry

1st Grade

STOIKIOMETRI 2
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Seorang petaniakanmembuatlarutan urea untukpupuk. Massa air yang diperlukanmelarutkan15 gram urea (Mr = 60) agar diperolehfraksi mol larutan urea 0,1 adalah…

20,5 gram                                                             

30,0 gram                                                             

40,0 gram

40,5 gram

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Seorang mahasiswa yang sedangpraktikumakanmembuatlarutan NaOH 1 molal.

Massa air yang harusdilarutkanuntuk20 gram NaOH (Mr = 40) adalah…

500 gram

100 gram                                                              

300 gram

400 gram

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

banyaknyajumlah mol zatterlarutdalam 1 Kg atau1000 gram air adalah…

Normalitas 

 Molaritas                                                                   

Molalitas 

Fraksi Mol

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

banyaknyajumlah mol zatterlarut yang dilarutkandalam 1 liter larutanadalah..

Normalitas  

Molaritas 

Molalitas

Fraksi Mol

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jumlah mg zatterlarutdalam 1 Liter larutandisebut…

ppm

Fraksi Mol

Normalitas

Molaritas

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jika diketahuimassa atom relatif H = 1, S = 32, O = 16 dan massamolekulrelatif (NH4)2SO4 = 132, makamassa atom relatif N adalah.....

 7

12

14

20

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jika diketahuiArCa = 40, C = 12, O = 16 dan bilangan Avogadro = 6,02×1023, maka 50 gram CaCO3mempunyaijumlahmolekul.....

3,01 × 1021

3,01 × 1022

6,02 × 1022

3,10 × 1023

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