
Ar dan Mr, Konsep Mol
Authored by Fadhila Matsna
Chemistry
10th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Jika diketahui Ar S = 32, O = 16, dan H = 1, maka Mr H2SO4 adalah ....
48
98
100
120
180
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Seng terdiri atas 2 isotop, yaitu 60% Zn-65 dan 40% Zn-66, maka massa atom relatif seng adalah ....
65,2
65,4
65,6
66,2
66,4
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Jika diketahui massa 1 atom unsur A mempunyai massa 1,08 x 10-22 gram dan massa 1 atom C-12 adalah 1,99 x 10-23 gram, maka massa atom relatif dari unsur A adalah ....
5,4
10,8
65
130
150
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Jika diketahui Ar CU = 63,5, S = 32, O = 16, dan H = 1, maka Mr CuSO4.5H2O adalah ....
159,5
189,5
209,5
229,5
249,5
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Sebanyak 1 gram NaOH dilarutkan dalam air hingga volumenya 250 mL, maka konsentrasi larutan tersebut adalah .... (Ar = 23; O = 16, dan H = 1)
0,025 mol/L
0,25 mol/L
2,5 mol/L
1,0 mol/L
0,1 mol/L
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Banyaknya volume yang dibutuhkan 0,2 mol HCl untuk membuat larutan dengan konsentrasi 1 M adalah ....
100 mL
200 mL
300 mL
400 mL
500 mL
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Bila diukur pada 27°, 1 atm, gas oksigen yang massanya 8 gram akan bervolume .... (R = 0,082 L atm/K.mol, Ar O = 16)
24,6 liter
22,4 liter
11,2 liter
6,15 liter
5,6 liter
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