Stoichiometry Question Preview (ID: 33699)

Basic Stoichiometry, Molar Mass, And Percent Composition.[print questions] Answers? Play games to get them!

How many grams are in 1.00 mole of Li?
a) 6.02 x 10^23
b) 3 g
c) 6.94 g
d) 6.94 mole

The molar mass of C14H14O3 is?
a) 96
b) 230
c) 115
d) 342

6.02 X 10^23 is:
b) The number of particles in 1 mole of anything
c) A counting unit
d) All of the above

How many grams are in 1.50x10^23 atoms As?
a) 0.25 g
b) 1.50 x 10^23 g
c) 18.66 g/mol
d) 18.66 g

How many moles are represented by 40.1 g Ca?
a) 1
b) 6.02 x 10^23
c) 0.5
d) 2

How many atoms are in 5.0 moles of silver?
a) 3.0 x 10^24 atoms
b) 3 x 10^24 atoms
c) 1.2 x 10^24 atoms
d) 3.0 x 10^24 molecules

How many moles are in 0.56 grams of potassium?
a) 0.014
b) 22
c) 0.028
d) 21.9

The molar mass of Ba(OH)2 is
a) 154.3 g
b) 155.3 g
c) 171.3 g
d) 308.6 g

What is the percent composition by mass of nitrogen in NH4NO3?
a) 17.5%
b) 35.0%
c) 52.5%
d) 60.0%

The gram formula mass of NH4Cl is
a) 22.4 g/mol
b) 28.0 g/mo
c) 53.5 g/mol
d) 95.5 g/mol

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