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What is a mole? (Unit 2, Lesson 26)

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

What does a dozen measure?

a)

pieces or particles of items

b)

volume of items

c)

color of a items

d)

density of items

2.

Which one of the following units is used in a similar way to how the mole is used in chemistry?

a)

an inch

b)

a liter

c)

a dozen

d)

a mile

3.
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 
4.

The mole is a...

a)

Unit to measure the amount of atoms in a substance

b)

Unit to measure distance

c)

Unit to measure time of atomic decay

d)

Unit used to measure the size of each atom in a substance

5.

What does a mole in chemistry measure?

a)

particles of a substance

b)

volume of a substance

c)

color of a substance

d)

density of a substance

6.
What is Avogadro's Number? 
a)
6.02 x 1023
b)
- 6.02 1023
c)
6.02 x 1022
d)
6,020,000,000,000
7.

What is this number called?

a)

Avocado's Number

b)

Avogadro's Number

c)

Mendeleev's Number

d)

The mole

8.

Why is the mole used to measure the atom?

a)

Atoms are extremely tiny particles, and their size varies from element to element

b)

Atoms are all the same size for every element

c)

Some atoms cannot be counted using the mole

d)

Tu eres loco, Senior Hagerman.

9.

What do two or more mashed Avogadro's make?

a)

Guaca-MOLE

b)

Chemistry = fun

c)

Hagerman more crazy

d)

You snapchatting your life away

10.

How many atoms are in 1 mole of Carbon (C)?

a)

6.02 x 1023

b)

58

c)

11

d)

17

11.

The mole can be used to measure (SELECT ALL CORRECT ANSWERS)

a)

The amount of atoms

b)

The amount of molecules or compounds in a substance

c)

The amount of particles

d)

The amount of fission or fusion decay over time

12.

These two dishes shown each contain 1 dozen of solid material, how can they have different masses (one has a mass of 11.98 grams and the other has a mass of 15.38grams)?

a)

There are more M&M's than Skittles

b)

The two solids are made of different ingredients with different masses

c)

One solid has bigger pieces than the other one

d)

It's a trick question!

13.

This dish contains one dozen of Skittles solid substance, how many dozen would we have if we tripled this amount?

a)

one half of a dozen Skittles

b)

one quarter of a dozen Skittles

c)

two dozen Skittles

d)

three dozen Skittles

14.

This dish contains 0.25 dozen of M&M solid substance, how many dozen M&M's would we have to add to get a full dozen?

a)

0.50 dozen M&M's

b)

1.00 dozen M&M's

c)

0.33 dozen M&M's

d)

0.75 dozen M&M's

15.

The picture shown is exactly one mole of sulfur, S, what is one mole a measurement of?

a)

the mass of sulfur

b)

the volume of sulfur

c)

the density of sulfur

d)

the number of particles of sulfur

16.

This dish contains one mole of solid tin, Sn, how many moles would we have if we doubled this amount?

a)

one third of a mole of Sn

b)

one quarter of a mole of Sn

c)

two moles of Sn

d)

four moles of Sn

17.

This dish contains one mole of sodium chloride, NaCl, solid, if half of it were removed, how many moles would be left?

a)

one whole mole of NaCl

b)

one quarter of a mole of NaCl

c)

one third of a mole of NaCl

d)

one half of a mole of NaCl

18.

These two dishes each contain 1 mole of solid substance, how can they have different masses (one has a mass of 207.20 grams and one has a mass of 63.55 grams)?

a)

One clearly has 100 more particles than the other

b)

The two solids are different elements with different masses

c)

One solid has bigger pieces than the other one

d)

It's a trick question!

19.

These two dishes each contain 1 mole of a solid substance, how can they have different masses (one has a mass of 32.1 grams and one has a mass of 28.1 grams)?

a)

One clearly has 50 more particles than the other

b)

One solid has bigger pieces than the other one

c)

The two dishes have different elements with different masses

d)

It's a trick question!

20.

Which of the following are NOT definitions of the chemical term mole? (Select all that apply.)

a)

An underground animal.

b)

A spy.

c)

A savory chocolate sauce.

d)

A beauty mark.

e)

A counting unit used to count very small particles by relating to the mass of the particles.