WorksheetsBCHM Quiz 2: Solutions Acids Bases Dilution
Total questions: 27
Worksheet time: 1hrs 6mins
Which solution is more concentrated?
Solution 1:
500 mL of water
100 g of salt
Solution 2:
500 mL of water
90 g of salt
Solution 1
Solution 2
They have the same concentration
I have no idea
Calculate the mass percent of solution, if there is 100 g of sugar and 400 g of water
30
25
20
15
What is the molality of a solution made by dissolving 2 moles of NaOH in 400 grams of water?
5 mol/kg. solvent
4 mol/kg solvent
3 mol/kg. solvent
2.5 moles /kg solvent
How many mL of 10.8M HCl are required to make 100.0 mL of 3.00M acid?
27.8 mL
.278 mL
2.8 mL
278 mL
If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?
.188 M
3.78 M
.389 M
1.76 M
How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?
7.5 mL
15 mL
1333 mL
200 mL
The pH of a solution is 2.0. What is the [OH-] concentration?
1x10-12M
12 M
1x10-2M
2 M
What is the pH of a solution where the [H+] is 1.0 x 10-11?
11
13
14
1
What is the pOH of a 1 x 10-8 M solution of HNO3?
8
6
7
9
What is the [H+] if the pH is 4.0?
1.0 x 10-10 M
1.0 x 10-4 M
1.0 x 10-14 M
1.0 x 10-7 M
Identify the Bronsted Lowry Acid (A) and Base (B) in the given reaction.
A
B
C
D
HA(aq) + H2O ↔ H3O+ + A-
If there is a lot of product, what does that tell you about the acid?
A
B
C
A
B
C
D
E
A
B
C
A
B
C
For this reaction :
HA(aq) + H2O(l) ⇌ H3O+(aq) + A-(aq)
Which one can act as an acid ?
HA(aq) and A-(aq)
H2O(l) and H3O+(aq)
HA(aq) and H3O+(aq)
H2O(l) and A-(aq)
dissociation of weak acid, HA, is represented by following equation :
HA(aq) + H2O(l) ⇌ H3O+(aq) + A-(aq)
The equilibrium constant for this reaction is represented by Ka . Which of the following equation represents expression of equilibrium constant, Ka?
2HCl + Mg(OH)2 --> MgCl2 + 2HOH
pKa values of two acids A and B are 4 and 5. The strengths of these two acids are related as
Acid A is 10 times stronger than acids B
The strengths of the two acids can not be compared
Acid B is 10 times stronger than acid A
Strength of acid A : strengtha of acid B = 4 : 5
