UAS KIMIA KELAS 11
Quiz
•
Chemistry
•
11th Grade
•
Hard
ANGGY NINGTYAS
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40 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika larutan yang mengandung 2 mol Pb(NO3)2 direaksikan dengan larutan yang mengandung 2 mol KI, dengan persamaan reaksi Pb(NO3)2 + 2KI PbI2 + 2KNO3, maka akan dihasilkan PbI2 sebanyak ..........
4 mol
2 mol
1 mol
0,5 mol
0,2 mol
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Larutan NaOH 0,1 M sebanyak 200 mL direaksikan dengan 200 mL larutan MgCl2 0,1 M sehingga terjadi reaksi : NaOH(aq) + MgCl2(aq) Mg(OH)2(s) + NaCl(aq) Jika diketahui Ar Mg = 24, O = 16, dan H = 1, jumlah maksimum endapan yang dihasilkan adalah ...........
58,00 g
11,60 g
5,80 g
1,16 g
0,58 g
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Apabila 200 cm3 larutan Pb(NO3)2 1 M direaksikan dengan 100 cm3 larutan KI 1 M menurut persamaan reaksi : Pb(NO3)2 + KI PbI2 + KNO3 Maka pereaksi yang berlebih adalah ........
0,05 mol Pb(NO3)2
0,05 mol KI
0,10 mol Pb(NO3)2
0,10 mol KI
0,15 mol Pb(NO3)2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pada reaksi 27 gram kalsium dengan 5,6 gram nitrogen dihasilkan kalsium nitrida menurut reaksi Ca + N2 Ca3N2 Jika Ar Ca = 40 dan N = 14, maka massa kalsium nitrida yang dihasilkan adalah .......
14,8 g
29,6 g
33,3 g
68,0 g
148,0 g
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Serbuk MnO2 yang massanya 8,6 gram direaksikan dengan 100 mL larutan HCl 0,2 M menurut persamaan reaksi berikut MnO2 + 4HCl MnCl2 + Cl2 + H2O Jika massa atom relatif Ar Mn = 54; Cl = 35,5; dan O =16, maka gas klorin yang dihasilkan pada keadaan standar adalah .......
22,4 liter
11,2 liter
5,6 liter
2,24 liter
0,112 liter
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Gas karbon dioksida (CO2) dapat diperoleh melalui reaksi berikut Dalam suatu reaksi antara 100 gram CaCO3 dengan larutan asam klorida ternyata dihasilkan gas CO2 sebanyak 19,04 liter (diukur pada 0℃, 1 atm). Jika Ar Ca = 40, C = 12 dan O = 16, rendemen hasil reaksinya adalah ......
40%
60%
75%
80%
85%
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Hidrogen fluorida (HF) merupakan gas yang dimanfaatkan untuk membuat freon. Gas HF dapat melalui reaksi berikut. CaF2 + H2SO4 CaSO4 + 2HF Jika rendemen reaksinya 90%, maka untuk mendapatkan 22,4 liter gas HF (diukur pada 0℃, 1 atm), massa CaF2 yang harus direaksikan adalah ..........
43,3 g
59,0 g
65,5 g
116,6 g
122,6 g
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