Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
|
|
|
1.
|
The
mass of a mole of NaCl is the ____. a. | molar mass | c. | molecular mass | b. | atomic
mass | d. | gram atomic
mass | | | | |
|
|
|
2.
|
What
is the molar mass of AuCl3? a. | 96 g | c. | 232.5 g | b. | 130
g | d. | 303.6
g | | | | |
|
|
|
3.
|
What
is the molar mass of (NH ) CO ? a. | 144 g | c. | 96 g | b. | 138 g | d. | 78 g | | | | |
|
|
|
4.
|
The
molar mass of C H and the molar mass of CaCO
contain approximately the same number of ____. a. | carbon atoms | c. | cations | b. | anions | d. | grams | | | | |
|
|
|
5.
|
The
atomic masses of any two elements contain the same number of ____. a. | atoms | c. | ions | b. | grams | d. | milliliters | | | | |
|
|
|
6.
|
Which
of the following is NOT a true about atomic mass? a. | The atomic mass is 12 g for
magnesium. | b. | The atomic mass is the mass of one mole of
atoms. | c. | The atomic mass is found by checking the periodic
table. | d. | The atomic mass is the number of grams of an element that is
numerically equal to the mass in amu. | | |
|
|
|
7.
|
What
is true about the molar mass of chlorine gas? a. | The molar mass is 35.5 g. | b. | The molar mass
is 71.0 g. | c. | The molar mass is equal to the mass of one mole of chlorine
atoms. | d. | none of the above | | |
|