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Name
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Date ______ Class _____
10-1 Practice Problems
1. What is the atomic-mass of zinc?
· 6. What is the atomic mass of neon?
20.2 u
65.4 u
2.
Methylene chloride (CH2Cl2) is bsed as a
solvent in paint strippers. What is the
formula mass of methylene chloride?
7. Sodium chloride (NaCl) is common table
salt. What is the forrp.ula mass of sodium
chloride?
85.0 u
58.5 u
8. What is the atomic mass of uraniUIIi?
3. What is the atomic mass of nitrogen?
238.0 u
28.0 u
4.
Ammonia (NH3) is a common household
cleaning agent. What is the formula mass
of ammonia?
9. Nitric acid (HN03) is a strong acid. What
is the formula mass of nitric acid?
63.0 u
17.0 u
5. Sodium hypochlorite (NaClO)' is the active
ingredient in household bleach. What is
.the formula mass-of sodium hypochlorite?
74.5 u
8
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Chapter 10
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.
10. What is the atomic mass of silver?
107.9 u
© Prentice-Hall, Inc.
Name _____________________________ Date _ _ _ _ _ Class _ _ __
10-1 Practice Problems (continued)
Calculate the molar mass for each of the following compounds.
11. rnethylamine'(CH3NH2 )
16. silver chloride (AgCl)
31.0 g/mol
143.4 g/mol
\
17. sodium hydroxide (NaOH)
78.0 g/mol
40.0 g/mol
18. copper(II) sulfate (CuS04 )
)
44.0 g/mol
62.0 g/mol
15. chloroform (CHCI3 )
119.5 g/mol
© Prentice-Hall, Inc.
159.6 g/mol
114.0 g/mol
20. tr~brornosilane (Br3HSi)
268.8 g/mol
Chapter 10 9