Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Nam

eD

ateC

lass

38

Ch

em

istry: M

atte

r an

d C

han

ge •

Ch

ap

ter 1

0Te

ach

ing

Tran

spare

ncy

Maste

rs

Mass of compound Moles of compound

Moles of atoms or ions

Representative particles

6.02 3 1023 molecules

or formula units

6.02 3 1023 molecules

or formula units

number of grams

1 mol

1 mol

number of grams 1 mol

1 mol

mo

l ato

ms

or

ion

s

1 m

ol co

mp

ou

nd

1 m

ol co

mp

ou

nd

mo

l ato

ms

or

ion

s

Ma

ss-to-M

ole

an

dM

ole

-to-P

article

sC

on

ve

rsion

s for C

om

po

un

ds

Ma

ss-to-M

ole

an

d

Mo

le-to

-Pa

rticles

Co

nv

ersio

ns fo

r Co

mp

ou

nd

s

TEA

CH

IN

G T

RA

NSPA

REN

CY

M

AST

ER

Use

with

Ch

ap

ter 1

0,

Se

ction

10

.3

34

Name Date Class

Copyri

ght

©G

lenco

e/M

cGra

w-H

ill,

a d

ivis

ion o

f T

he

McG

raw

-Hil

l C

om

pan

ies,

Inc.

Teaching Transparency Worksheets Chemistry: Matter and Change • Chapter 10 39

1. According to the diagram, what three quantities can you calculate if you know the

number of moles of a compound?

2. According to the diagram, what three quantities can you calculate from a mass

measurement of a compound?

3. If you were given the number of moles of a compound, what quantity would you need to

know to calculate the mass of that number of moles of the compound?

4. If you were given the number of moles of a compound, what information would you

need to know to determine each of the conversion factors necessary to find the number of

moles of each atom or ion in the compound?

5. You are given a 2.0-mol sample of calcium carbonate (CaCO3). The molar mass of

CaCO3 is 100.09 g/mol. Write the conversion factor you would use to determine

correctly each of the following quantities.

a. the mass in grams of the sample

b. the number of formula units of CaCO3 in the sample

c. the number of moles of oxygen atoms in the sample

6. Write the conversion factors in the order you would use them to determine correctly each

of the following quantities in a sample of 2.0 3 1024 molecules of ethane (C2H6). The

molar mass of ethane is 30.08 g/mol.

a. the mass in grams of the sample

b. the number of carbon atoms in the sample

Mass-to-Mole andMole-to-ParticlesConversions for Compounds

Mass-to-Mole and Mole-to-Particles Conversions for Compounds

TEACHING TRANSPARENCY WORKSHEET

Use with Chapter 10,Section 10.3

34