# Review Chapter 10

Acetaldehyde and butanoic acid must have the same
A
Molecular formula
B
empirical formula
C
molar mass
D
chemical properties
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Slide 1: Quiz
Science Secondary Education

This lesson contains 11 slides, with interactive quizzes.

## Items in this lesson

Acetaldehyde and butanoic acid must have the same
A
Molecular formula
B
empirical formula
C
molar mass
D
chemical properties

#### Slide 1 -Quiz

If the molar mass of butanoic acid is 88.1 g/mol, what is its molecular formula?
A
C3H403
B
C2H4O
C
C2H60
D
C4H1302

#### Slide 2 -Quiz

What is the empirical formula of ethanol?
A
C4H03
B
C2H6O2
C
C2H6O
D
C4H13O2

#### Slide 3 -Quiz

How many atoms are in 0.625 moles of Ge (atomic mass =72.59 amu)?
A
2.73*10^25
B
6.99 * 10^25
C
3.76 * 10^23
D
9.63 * 10^23

#### Slide 4 -Quiz

What is the mass of one molecule of barium hexafluorosilicate BaSiF6?
A
1.68*10^26 g
B
2.16 * 10^21 g
C
4.64 * 10^-22g
D
6.02 * 10^ -23 g

#### Slide 5 -Quiz

Which of the following counting units would be appropriate for counting sheets of paper sold at a store?
A
dozen
B
ream
C
mole
D
pair

#### Slide 6 -Quiz

Which of the following quantites would have the greatest mass: one mole of carbon atoms, one mole of helium atoms, one mole of neon atoms?
A
one mole of carbon atoms
B
one mole of helium atoms
C
one mole of neon atoms
D
They would have equal masses

#### Slide 7 -Quiz

The atomic mass of hydrogen-1 is 1.008 and the atomic mass of helium-4 is 4.003. Find the difference in grams between 4 moles of hydrogen and one mole of helium.
A
0.029 g
B
1.7 x 10^22 g
C
0 grams
D
4.81 x10^-26 g

#### Slide 8 -Quiz

What is the molar mass of H2CrO4?
A
52 g
B
101 g
C
63 g
D
118 g

#### Slide 9 -Quiz

What is the best method for removing water from a hydrated compound?
A
freezing
B
distillation
C
heating
D
filtration