WorksheetsReview QUIZ 8
Total questions: 9
Worksheet time: 27mins
Name
Class
Date
1.
What does a mole represent?
a)
The number of elements on the periodic table
b)
The number of compounds a substance can form
c)
The number of particles of a substance (Avogadro's number)
d)
The number of small animals living underground
2.
Which of the following shows the correct relationship between a mole of carbon and its number of particles and mass?
a)
1 mole = 100 g = 12 particles = 50 L
b)
1 mole = 12.0 g = 12 particles = 1 L
c)
1 mole =12.0 g =. 6.02x10^23 particles = 22.4 L
d)
1 mole = 1200 g = 6.02 particles = 22.4 L
3.
Which shows the correct way to calculate the formula molar mass for H2O?
a)
Divide the atomic mass by the number of atoms then subtract the values
b)
Divide the number of atoms by a whole number
c)
Multiply the number of atoms by a whole number
d)
Multiply the atomic mass by the number of atoms then add the values
4.
Calculate the molar mass of the formula: LiClO
a)
32.1 g/mol
b)
58.4 g/mol
c)
68.4 g/mol
d)
76.5g/mol
5.
What do we call the strategy to organize the conversion of moles, grams, and atoms?
a)
the "cat and onion"
b)
the "criss-cross"
c)
the "fence"
d)
the "box"
6.
How many molecules are found in 9.8 moles of CO? (DON'T FORGET TO SHOW YOUR WORK IN YOUR JOURNAL FOR EXTRA CREDIT!)
a)
b)
c)
d)
7.
How many grams are in 0.725 moles of Chromium?(DON'T FORGET TO SHOW YOUR WORK ON YOUR SCRATCH SHEET FOR EXTRA CREDIT!)
a)
42.0 g Cr
b)
52.0 g Cr
c)
62.0 g Cr
d)
37.7 g Cr
8.
How many molecules are in 2.0 g of water(H20)? (THIS IS A TWO-STEP PROBLEM, SO BE CAREFUL!! DON'T FORGET TO SHOW YOUR WORK ON YOUR SCRATCHSHEET FOR EXTRA CREDIT!)
a)
b)
c)
d)
9.
What is the molar mass of Fe(NO3)2? (Two decimal places, space and units)
(a)
100 %
