Chapter 1 – Fundamentals of Chemistry Multiple Questions and Answers.




6.All of the followings are tri-atomic molecule except:
A. Ho
B. O3
C. #20
D. CO2

7.The mass of one molecule of water is:
A. 18 amu
B. 18 g
C. 18 mg
D. 18 kg

8.The molar mass of H2S04 is:
A. 98 g
B. 48 amu
C. 4.8 ¢
D. 98 amu

9.Molar mass is usually expressed in grams. Which one of the following is molar mass of O2 in amu?
A. 32 amu
B. 53.2 x 1074 amu
C. 1.92 *10-% amu
D. 192.64 = 10-*> amu

10.How many numbers of moles are equivalent to 8 grams of CQ2?
A. 0.15
B. 0.18
C. 0.21
D. 0.24

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