NEW
Font size
S
M
L
XL
WorksheetsQuiz 1: Mole Concept
Total questions: 10
Worksheet time: 24mins
Name
Class
Date
1.
Which one is empirical?
a)
H2O2
b)
C2H6O12
c)
CaCl2
d)
N2O8
2.
What is the molar mass of carbon?
a)
12.0 g
b)
12.0 mol
c)
12.0 amu
d)
12.0 g/mol
3.
A mole of Neon contains
6.02 x 1023 _____.
6.02 x 1023 _____.
a)
atoms
b)
formula units
c)
ions
d)
molecules
4.
The number 6.02 x 1023 is called...
a)
Obama's number
b)
Bohr's number
c)
Trump's number
d)
Avogadro's number
5.
Molar mass is in units of ________.
a)
grams
b)
grams/mole
c)
mole
d)
moles/gram
6.
Calculate the number of moles of 0.25 g of H2SO4?
a)
2.00 x 10-3 mol
b)
2.35 x 10-3 mol
c)
2.55 x 10-3 mol
d)
3.00 x 10-3 mol
7.
How many hydrogen atoms in 0.5 g ammonia?
a)
5.3144 x 1022 atoms
b)
1.7715 x 1022 atoms
c)
6.023 x 1022 atoms
d)
3.543 1022 atoms
8.
How many moles are there in 8.50 x 1024 molecules of sodium sulfate, Na2SO4? (molecules to mole)
a)
1.40 moles
b)
14.1 moles
c)
51.2 moles
d)
5.12 x 1048 moles
9.
How many grams of NaCl (molar mass = 58.45g/mol) are present in 11.00 moles? (moles to grams)
a)
0.4500 g
b)
156.6 g
c)
331.0 g
d)
642.9 g
10.
How many grams of Hydrogen are there in 25 moles of water?
a)
25 g
b)
450 g
c)
18 g
d)
50 g
Reset
