WorksheetsAsam dan Basa dalam Kimia
Total questions: 60
Worksheet time: 1hrs 3mins
Asam adalah ....
Senyawa yang mengandung hydrogen dan larut dalam air
Zat yang dalam air akan menjadi donor proton
Zat yang larutannya dalam air melepaskan ion H+
Senyawa yang bereaksi dengan air menghasilkan ion H3O+
Senyawa yang mampu mengikat ion H+ didalam air
Diantara senyawa berikut ini yang memungkinkan terlarut dalam larutan sampel tersebut adalah…….
NH4OH
HNO3
KBr
NaOH
C6H12O6
Volume system adalah .....
2,5 liter
5,0 liter
7,5 liter
10 liter
17,5 liter
Jika ke dalam reaksi kesetimbangan diatas ditambahkan 1 mol NH3 maka pergeseran kesetimbangan yang terjadi adalah .....
Kesetimbangan akan bergeser ke kiri
Kesetimbangan akan bergeser ke kanan
Kesetimbangan tidak akan bergeser
Tekanan kesetimbangan akan menurun
Suhu kesetimbangan akan turun
Nilai pH Larutan basa lemah NH4OH 0,1 M dan Kb = 10-5 adalah .....
9
10
11
12
13
Sifat larutan garam yang terhidrolisis dapat dikelompokka berdasarkan jenis asam dan basa pembentuknya. Jika suatu asam kuat di campur dengan basa lemah, maka akan terbentuk larutan garam yang bersifat .....
Asam jika Ka > kb
Basa jika Ka < kb
netral
asam
basa
Dalam volume 5 liter terdapat 4,0 mol asam iodide, 0,6 mol yodium, dan 0,5 mol hidrogen dalam suatu kesetimbangan. Maka tetapan kesetimbangan untuk reaksi pembentukan asam iodida dari yodium dan hidrogen adalah…
50
54
56
60
64
Sebanyak 100 mL larutan CH3COOH 0,1 M direaksikan dengan 100 mL NaOH 1 M. pH larutan hasil reaksi tersebut adalah …
2 + log 4,5
14
13 + log 4,5
13 - log 4,5
1 - log 4,5
Dari reaksi kesetimbangan dibawah ini yang akan bergeser ke kanan jika tekanan di perbesar adalah .....
2Hl(g) ⇆ H2(g) + I2(g)
N2O4(g) ⇆ 2NO2(g)
CaCO3(s) ⇆ CaO(s) + CO2(g)
2NO(g) + O2(g) ⇆ 2NO2(g)
S(s) + O2(g) ⇆ SO2(g)
Sebanyak 50 ml larutan NH3 0,1 M (kb= 10-5) dicampur dengan 100 ml larutan NH4CL 0,5 m. Nilai pH larutan tersebut adalah…
6
10
8
12
12 +log 2
Nilai pH dari 500 ml larutan Ba(OH)2 0,01 M adalah….
2
12+lpg 2
10
12-log 2
12
Apa yang terjadi jika 100 ml larutan NaCl 0,01 M ditambahkan ke dalam 100 ml larutan AgNO3 0,001 M. Jika diketahui Ksp AgCl = 1,44.10-9.
AgCl mengendap
AgCl Tidak Mengendap
AgNO3 Mengendap
NaCl Mengendap
NaCl tidak mengendap
Dalam 100 cm3 air dapat larut 1,16 mg Mg(OH)2 (Mr = 58). Harga Ksp dari Mg(OH)2 adalah….
16,0 × 10−12
3,2× 10−11
8,0× 10−10
4,0× 10−10
8,0× 10−8
Berikut adalah data titik beku (Tf) berbagai larutan elektrolit dan non-elektrolit. Berdasarkan data tersebut, dapat disimpulkan bahwa ........
larutan elektrolit yang berkonsentrasi sama memiliki titik beku yang sama
titik beku larutan dipengaruhi oleh jenis zat terlarut dan jenis pelarut
titik beku larutan elektrolit lebih tinggi daripada larutan non-elektrolit
semakin besar konsentrasi zat, semakin tinggi titik beku larutan
pada konsentrasi sama, titik beku larutan elektrolit lebih rendah daripada larutan non-elektrolit
Dalam 250 gram air dilarutkan 1,9 gram MgCl2, ternyata larutan membeku pada -0,372°C. Jika tetapan titik beku molal air = 1,86°C/m, derajat ionisasi garam MgCl2 (Mr = 95) adalah . . . .
1
0,75
0,5
0,25
0,1
Pada suhu 27 ºC larutan NaCl ( Mr = 58,5) dengan kadar 5,85 % dan massa jenis 1,1 gr/ml mempunyai tekanan osmosis sebesar ……
10,28 atm
21,65 atm
32,47 atm
43,28 atm
54,12 atm
Sebanyak 24 gram zat nonelektrolit dilarutkan dalam air hingga volume larutan 2 liter dan ternyata larutan ini isotonis dengan larutan NaOH 0,1 M. Massa molekul relatif zat tersebut...
15 g/mol
30 g/mol
45 g/mol
60 g/mol
90 g/mol
Yang bukan merupakan reaksi redoks adalah....
a
b
c
d
e
Kelompok persamaan reaksi yang mengalami reaksi Oksidasi ditunjukkan oleh nomor....
1), 2), dan 3)
1), 3), dan 4)
1), 3), dan 5)
2),3), dan 4)
2), dan 4)
Pernyataan berikut yang benar adalah ....
HI adalah zat pereduksi
HNO2 adalah zat pereduksi
H2O adalah zat pereduksi
H2O adalah zat pengoksidasi
I2 adalah zat pereduksi
The following statement is true ....
HI is a reducing agent
HNO2 is a reducing agent
H2O is a reducing agent
H2O is an oxidizing agent
I2 is a reducing agent
Consider the following redox reaction!
1, 2, and 4
1, 2, and 2
1, 14, and 2
1, 14, and 6
2, 7, and 6
The volume of KMnO4 solution 0.1 M required to oxidize 20 ml of 0.1 M FeC2O4 solution is ....
3 ml
6 ml
9 ml
12 ml
15 ml
The correct notation of the voltaic cell is ....
Al/Al3+//Cu2+/Cu
Al3+/Al//Cu/Cu2+
Cu2+/Cu// Al/Al3+
Cu/Cu2+// Al3+/Al
Al/Cu2+// Al3+/Cu
The diagram of the cell that occurs spontaneously is ....
Cu/Cu2+//Zn2+/Zn
Ag/Ag+//Fe2+/Fe
Ag/Ag+//Zn2+/Zn
Pb/Pb2+//Cu2+/Cu
Pb/Pb2+//Zn2+/Zn
The cell potential using electrodes Pb and Al will be ....
+1.89 V
-1.89 V
+1.63 V
-1.63 V
+3.61 V
The potential of the cell from: Fe + Sn2+ (Fe2+ + Sn is ....
0.30 V
0.44 V
0.64 V
0.92 V
1.12 V
The statement that is not true is ....
the Pb electrode as cathode
the Al electrode as anode
the standard cell potential is 1.84 V
the Pb metal precipitates on
The volume of the system is ....
2.5 liters
5.0 liters
7.5 liters
10 liters
17.5 liters
The shift in equilibrium that occurs is ....
The equilibrium will shift to the left
The equilibrium will shift to the right
The equilibrium will not shift
The equilibrium pressure will decrease
The equilibrium temperature will decrease
From the equilibrium reaction below which will shift to the right if the pressure is increased is ....
2Hl(g) ⇆ H2(g) + I2(g)
N2O4(g) ⇆ 2NO2(g)
CaCO3(s) ⇆ CaO(s) + CO2(g)
2NO(g) + O2(g) ⇆ 2NO2(g)
S(s) + O2(g) ⇆ SO2(g)
The value of Kp at that temperature is ....
4
6
8
10
12
For the reaction N2O4 (g) ⇄ 2 NO2 (g), if the total pressure of the mixture is 5.5 atm, what is the value of Kp at that temperature?
4
6
8
10
12
Which of the following equilibrium reactions will shift to the right if the pressure is increased?
2Hl(g) ⇆ H2(g) + I2(g)
N2O4(g) ⇆ 2NO2(g)
CaCO3(s) ⇆ CaO(s) + CO2(g)
2NO(g) + O2(g) ⇆ 2NO2(g)
S(s) + O2(g) ⇆ SO2(g)
According to Arrhenius, an acid is defined as?
A compound that contains hydrogen and dissolves in water
A substance that will become a proton donor in water
A substance whose solution in water releases H+ ions
A compound that reacts with water to produce H3O+ ions
A compound that can bind H+ ions in water
What is the pH value of a weak base solution NH4OH 0.1 M with Kb = 10^-5?
9
10
11
12
13
If a strong acid is mixed with a weak base, what type of salt solution will be formed?
Acid if Ka > Kb
Base if Ka < Kb
Neutral
Acid
Base
In a reaction where 0.5 mol of gas NO2 is heated in a room with a volume of 5 liters forming dinitrogen pentoxide according to the equation: 4NO2(g) + O2(g) -> 4N2O5(g). In the first 20 seconds, 0.5 mol of N2O5 is formed. What is the rate of decrease of NO2?
5x10^-2 m/s
5x10^4 m/s
5x10^3 m/s
5x10^-3 m/s
5x10^-1 m/s
If the enthalpy of formation for H2(g) + Cl2(g) -> 2HCl(g) is -185 kJ, what is the enthalpy of decomposition for 1 mol of HCl?
+185 kJ
-185 kJ
-370 kJ
+92.5 kJ
-92.5 kJ
At temperature T'C in a 5-liter vessel, there is an equilibrium: 2x g = 3Y(g). If Kp at that temperature is 1/2 and pX = 4 atm, what is the value of pY at that temperature?
1.3 atm
2.0 atm
5.6 atm
8.0 atm
3.2 atm
Given the equilibrium 2x g = 3Y(g). If Kp at that temperature is 1/2 and pX = 4 atm, what is the value of pY at that temperature?
1.3 atm
2.0 atm
5.6 atm
8.0 atm
3.2 atm
In a volume of 5 liters, there are 4.0 moles of iodide acid, 0.6 moles of iodine, and 0.5 moles of hydrogen in an equilibrium. What is the equilibrium constant for the reaction forming iodide acid from iodine and hydrogen?
50
54
56
60
64
If 50 ml of 0.1 M NH3 solution (Kb= 10-5) is mixed with 100 ml of 0.5 M NH4Cl solution, what is the pH of the resulting solution?
6
10
8
12
12 + log 2
What is the pH of 100 ml of 0.1 M KOH solution?
1
2
10
12
13
What is the pH of 500 ml of 0.01 M Ba(OH)2 solution?
2
12 + log 2
10
12 - log 2
12
What is the pH of 100 ml of 0.001 M NH4OH solution, given that the base ionization constant, Kb= 10-5?
1
2
10
12
13
What is meant by the homologous series in hydrocarbons?
A series of alkane compounds
A series of alkane isomers
A series of hydrocarbons with a difference of one CH2 group in their structural formula
A series of organic compounds with a difference of one CH2 group in their structural formula
A series of compounds that are isomers of each other.
What is meant by a buffer solution of acid and base?
A solution is made by dissolving 3 grams of urea CO(NH2)2 in 100 grams of water. Determine: a. the boiling point of the solution, b. the freezing point of the solution!
A Volta cell consists of an Mg electrode with a 1M MgSO4 solution and a Zn electrode in a 1M ZnSO4 solution. Given the following data: Mg2+ + 2e (Mg E0 = -2.37 V, Zn2+ + 2e (Zn E0 = -0.76 V. Determine the E cell produced from this electrode pair.
Determine the reactions at the anode and cathode, the cell reaction, and its notation.
An electrolysis event passes a current of 5 amperes into a H2SO4 solution for 1950 seconds. Determine the number of moles of electrons involved and the amount of oxygen gas produced in this event!
Iron is a very important metal for human life, especially in construction. To obtain iron, a very long and complicated process is required. Before reaching the processing stage, we must first understand the materials that need to be prepared. The diagram of the tools for the iron processing is presented.
From the above statement, name the iron ore that will be used in the process!
Name the reducer that will be used in the process!
What is the name of the process?
Write the reaction in number III from the diagram above!
What is the name of the product of the processing?
Since the iron processing requires high temperatures, what material should the tools be made of?
Name the elements/compounds obtained from the following processes: Contact process, Wohler process, Sisilia process, Goldsmith process, Deacon process.
