
Kuis Kimia 8
Authored by Ir S
Chemistry
12th Grade

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5 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Suatu larutan mengandung garam-garam Pb(NO3)2, Mn(NO3)2, dan Zn(NO3)2, masing-masing mempunyai konsentrasi 0,01 M. Pada larutan ini dilarutkan sejumlah NaOH padat hingga larutan mempunyai pH 8. Berdasarkan data Ksp berikut:
Pb(OH)2 = 2,8 . 10-16
Mn(OH)2 = 4,5 . 10-14
Zn(OH)2 = 4,5 . 10-17
Senyawa hidroksida yang mengendap dalam larutan adalah…..
Zn(OH)2
Mn(OH)2
Zn(OH)2 dan Pb(OH)2
Ketiga-tiganya
Tidak ada
2.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Nama senyawa kompleks [Co(NH3)4Cl2]Cl adalah…..
tetraminkobalt(III) triklorida
triklorotetraaminkobalt(III)
tetraamindiklorokobalt(III) klorida
tetraamindiklorokobalt(II) diklorida
diklorotetraaminkobaltat(III) klorida
3.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Diketahui tahap tahap reaksi sebagai berikut:
Mg + H2O ---> MgO + H2 ∆H = a kJ
H2 + O2 --> H2O ∆H = b kJ
2Mg + O2 --> 2MgO ∆H = c kJ
Menurut hukum Hess, hubungan antara a, b, dan c dinyatakan oleh persamaan…..
2a = c – 2b
a = b + c
2b = 2c + a
b = c + a
2c = a + 2b
4.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Gugus fungsi yang terdapat pada senyawa diatas adalah....
keton, alkena, kerboksilat, ester
ester, aldehid, karboksilat, alkena
alkuna, ester, karboksilat, aldehid
karboksilat, alkena, keton, ester
keton, eter, karboksilat, alkohol
5.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Diketahui ∆H pembentukan CH4 = -75 kJ/mol, energi ikatan H2 = 436 kJ/mol, dan entalpi penguapan karbon adalah 715 kJ/mol. Besarnya energi ikatan rata-rata C-H dalam CH4 adalah…..
410,5
412,5
415,5
417,5
420,5
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