College Chemistry Ii Phs 1035 Practice Exam 3 With Answer Key Page 2
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
397) The molar concentration of hydronium ion in pure water at 25 °C is ________.
7)
A) 0.00
B) 1.0 × 10 -7
C) 1.0 × 10 -14
D) 1.00
E) 7.00
8) The molar concentration of hydroxide ion in pure water at 25 °C is ________.
8)
A) 1.00
B) 0.00
C) 1.0 × 10 -14
D) 1.0 × 10 -7
E) 7.00
9) The magnitude of K w indicates that ________.
9)
A) water autoionizes very slowly
B) water autoionizes very quickly
C) water autoionizes only to a very small extent
D) the autoionization of water is exothermic
10) Which one of the following statements regarding K w is false?
10)
A) pK w is 14.00 at 25 °C.
B) The value of K w is always 1.0 × 10 -14 .
C) K w changes with temperature.
D) The value of K w shows that water is a weak acid.
E) K w is known as the ion product of water.
11) The hydride ion, H - , is a stronger base than the hydroxide ion, OH - . The product(s) of the reaction
11)
of hydride ion with water is/are ________.
A) H 3 O + (aq)
B) OH - (aq) + H 2 (g)
C) OH - (aq) + 2H + (aq)
D) no reaction occurs
E) H 2 O 2 (aq)
12) Of the following acids, ________ is a strong acid.
12)
A) HNO 2
B) H 2 CO 3
C) HNO 3
D) HClO
E) HF
13) Of the following acids, ________ is not a strong acid.
13)
A) HNO 2
B) H 2 SO 4
C) HNO 3
D) HClO 4
E) HCl
14) Of the following, ________ is a weak acid.
14)
A) HF
B) HCl
C) HBr
D) HNO 3
E) HClO 4
2
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education