Worksheets01-17Quiz
Total questions: 14
Worksheet time: 25mins
Name
Class
Date
1.
15 dozen roses is how many roses?
a)
15 roses
b)
22 roses
c)
12 roses
d)
180 roses
2.
If you have 228 pencils and start grouping them into dozens, how many dozens will you have?
a)
15 dozen
b)
19 dozen
c)
22 dozen
d)
24 dozen
3.
1 mole = 6.02e23. How many pencils do I have if I have 4.5 moles of pencils?
a)
A lot
b)
2.7e24 pencils
c)
4.5e18 pencils
d)
2.34e30 pencils.
4.
1 mole = 6.02e23. How many pencils do I have if I have 4.5 moles of pencils?
a)
A lot
b)
2.7e24 pencils
c)
4.5e18 pencils
d)
2.34e30 pencils.
5.
In chemistry, a "mole" is:
a)
The mass of an atom
b)
a large number used to count particles
c)
based on the volume of a substance
6.
How many atoms of iodine are in a mole of iodine?
a)
53
b)
63.55g
c)
126.9
d)
6.02 x 1023
7.
The number 6.02 x 1023 is called...
a)
Obama's number
b)
Bohr's number
c)
Trump's number
d)
Avogadro's number
8.
How many particles would be in 8.4 moles of Octane (C8H18)?
a)
5.77 x 1023
b)
5.04 x 1024
c)
5.77 x 1026
d)
5.04 x 1023
9.
What is the mole used for?
a)
To measure the amount of grams in a substance
b)
To measure the amount of atoms or molecules in a substance
c)
To measure the amount of energy in a substance
d)
To measure the amount of bonding in a substance
10.
Which list of number of atoms in Mg(NO2)2 is right?
a)
Mg : 1--NO : 2
b)
Mg : 1-- N : 6--O: 2
c)
Mg : 1-- N: 1-- O: 2
d)
Mg : 1-- N: 2-- O: 4
11.
Which list of number of atoms in K3PO3 is right?
a)
K : 3--PO : 3
b)
K :3--P : 1--O: 3
c)
K : 3-- P: 4--O: 1
d)
K : 3-- P: 5--O: 4
12.
How many moles are in 50 grams of oxygen (O2)?
a)
2.5 moles
b)
1.56 moles
c)
0.25 moles
d)
5 moles
13.
How many moles of Mg are in 19.82 g Mg?
a)
1.226mol Mg
b)
481.7mol Mg
c)
1.000mol Mg
d)
0.8156 mol Mg
14.
What is the molar mass of Gold (III) chloride, AuCl3?
a)
196.967 g
b)
626.354 g
c)
232.42 g
d)
303.326 g
100 %
