1. أسئلة مراجعه للباب الأول Revision of Chapter 1 Matter & Measurements
إعداد
د. هنادي يوسف مدراسي
أستاذ الكيمياء العضوية المساعد
مراجعة وتنقيح
أ. د. أميرة صالح العطاس
أستاذ الكيمياء التحليلية
قسم الكيمياء
جامعة الملك عبد العزيز-فرع الفيصلية

2. Chapter 1 Which of the following is not an SI base unit? A. kilometer*A.
kilometer* B.
kilogram C.
second D.
kelvin 2.
Which of the following SI base units is not commonly used in chemistry? A.
kilogram B.
kelvin C.
ampere* D.
mole 3
Which of the following prefixes means 1/100? A.
kilo B.
deci C.
centi * D.
milli 4
Which of the following prefixes means 10-3 ? A.
kilo B.
deci C.
centi D.
milli*
Chapter 1

3. Chapter 1 Which of the following prefixes means 106 ? A. Mega * B.5
Which of the following prefixes means 106 ? A.
Mega * B.
nano C.
Tera D.
milli 6
Which of the following SI base units is used to measure Electrical Current? A.
candela B.
kelvin C.
Ampere* D.
mole 7
The following procedure was used to determine the volume of a flask.
The flask was weighted dry and then filled with water. If the masses of empty flask and filled flask were 56.12g and 87.39g,respectively, and the density of water is g/cm3, Calculate the volume of the flask in cm3 ? A.
cm3 B.
87.6 cm3 C.
cm3 * D.
Chapter 1

4. Chapter 1 What temperature is 95 °F when converted to degrees Celsius?8.
What temperature is 95 °F when converted to degrees Celsius? A.
63 °C B.
35 °C * C.
127 °C D.
15 °C 9.
What temperature is 37 °C when converted to kelvin? A.
K * B.
99 K C.
236 K D.
67.15K
. 10.
What temperature is 77 K when converted to degrees Celsius? A.
–296 °C B.
105 °C C.
–196 °C * D.
25 °C
11.
Express 75 Tg as pg A.
7.5 pg B.
75 X1024 pg * C.
0.75 pg D.
75 X pg
Chapter 1

5. Chapter 1 12. Express 7.5 ng as Tg A. 7.5 X10-21Tg * B. 75 X1024 Tg C.A.
7.5 X10-21Tg * B.
75 X1024 Tg C.
0.75 Tg D.
7.5 X1021 Tg
13.
What is 22.6 m when converted to decimeters? A.
0.226 dm B.
2.26 dm C.
226 dm * D.
2.26 x 10–3 dm
14.
What is 25.4 mg when converted to kilograms? A.
2540 kg B.
2.54 x10–5 kg * C.
2.54 kg D.
2.54 x 104 kg
15.
At what temperature does the numerical reading on a Celsius thermometer equal that on a Fahrenheit thermometer? A.
0 °C B.
–40 °C * C.
100 °C D.
–32 °C
Chapter 1

6. Chapter 1 A. 10-9 and 10-6 B. 106 and 10-3 C. 103 and 10-3 *
The SI prefixes kilo and milli represent, respectively: 
A and 10-6
B and 10-3
C and 10-3 *
D and 10-6
E and 10-3
17. The SI unit of time is the
A hour
B second *
C minute
D. ampere
18. The diameter of an atom is approximately 1  10-7 mm. What is this diameter when expressed in nanometers? 
A  nm
B  nm
C  10-9 nm
D  10-1 nm *
19. At what temperature does the numerical reading on a Fahrenheit thermometer equal that on a Celsius thermometer? A.
0 °F B.
–40 °F * C.
100 °F D.
–32 °F
Chapter 1

7. Chapter 1 20. 6.0 km is how many micrometers? A. 6.0  106 µm
B. 1.7  10-7 µm
C. 6.0  109 µm *
D. 1.7  10-4 µm
21. The SI prefixes Tara and nano represent, respectively: 
A and 10-6
B. 106 and 10-3
C. 103 and 10-3
D and *
22. Which of these quantities represents the largest mass? 
A. 2.0  102 mg
B kg
C. 1.0  105 g
D. 2.0  102 cg *
23. Which of these quantities represents the smallest mass? 
A. 2.0  102 mg
B kg
C. 1.0  105 g *
D. 2.0  102 cg
Chapter 1

8. 24. How many cubic centimeters are there in exactly one cubic meter? 
A. 1  10-6 cm3
B. 1  10-3 cm3
C. 1  10-2 cm3
D. 1  106 cm3 *
25. Ammonia boils at -33.4C. What temperature is this in F? 
A F
B F
C F
D F
26. Convert -77F to kalvin ? 
A K *
B K
C K
D K
27. At what temperature does the numerical reading on a Fahrenheit thermometer equal that on a Celsius thermometer? A.
0 °F B.
–40 °F * C.
100 °F D.
–32 °F
Chapter 1

9. Chapter 1 28. How many cm2 are there in exactly m2 ? A. 1  10-6 cm2
B. 1  10-3 cm2
C. 1  10-2 cm2
D. 1  104 cm2 *
29. Ammonia boils at -33.4C. What temperature is this in F? 
A F
B F
C F *
D F
30. Convert -77F to kalvin ? 
A K *
B K
C K
D K
31. The density of octane is g/cm3. what is the mass of 65 mL of octane? 
A g *
B g
C g
D. 110 g
Chapter 1

10. Chapter 1 32. Which of the following prefixes is not correct
A. deci d
B. kilo K
C. Pico p
D. micro µ
33. Candela (cd) is the SI base unit of
A. time
B. mass
C. electrical current
D. Luminosity
34. Express 2,200 nm as picometers
A X pm
B pm
C pm
D. 2.2X106 pm
Chapter 1

11. 35. A piece of silver (Ag) metal weighted 194
35. A piece of silver (Ag) metal weighted g is placed in graduated cylinder containing mL of water. The volume of water now reads mL.
From these data calculate the density of silver? 
A g/mL *
B g/mL
C g/mL
D. 0.8 g/mL
36. A lead sphere has a mass of 1.2x104 g, and its volume is 1.05x103 cm3.
Calculate the density of lead ? 
A g/cm3
B g/cm3 *
C. 1.26x107 g/cm3
D. 0.8 g/cm3
37. Lithium is the least dens metal known (density= 0.53 g/cm3 ). What is the volume occupied by 1.2x103 g of lithium? 
A cm3
B cm3
C. 0.44x10-3 cm3
D. 2.26x103 cm3 *
Chapter 1

12. Chapter 1 38. Express 7,500 nm as pm A. 7.50 pm B. 7.5 x 106 pm *
C pm
D. 7.5 x 1012 pm
39. Express 7500 nm as micrometer 
A x 106 µm
B x 1012 µm
C µm
D µm *
40. How many mL in L 
A. 5 mL*
B mL
C. 50 mL
D mL
Chapter 1

13. Chapter 1 41. 2.25 nm is equal to: A. 2.25 x 103 pm* B. 2.25 x 10-10 m
C x 10-3 mm
D x 10-2 m
g/cm3 is equal to: 
A. 16 x 103 g/mL
B kg/m3
C g/cm3
D x 103 kg/m3*
43. How many mL in dm3 
A. 9 mL*
B mL
C. 90 mL
D mL
Chapter 1