Chapter 1: Matter and Measurement1_AP+Class...Separating Mixtures 1_17 Substances to be separated dissolved in liquid Pure liquid A B C mixture Chromatography. Temperature. Relative

Agenda

Introductions and get to know us models

Objective:

You will design and synthesize a person-ical

model to inform your classmate and Mr. G

about who you are and what you want to

become

Essential QuestionsIf a student completes everything their teacher

asks of them, homework, extra studying,

participation in class, etc, should they be

guaranteed a grade of A or B? Why?

Bell Work16-Aug-17

How can matter be classified by its parts or

broken down in specific components?

Break it down into an organized

representation of the constituent parts.

Define/ describe these.

Agenda

Matter

Lab Safety

Essential QuestionSpeaking Metaphorically, at the end of the day who is responsible for your education and what is achieved during it?

AgendaMatter

Sig Figs

Personal Chemical Structures

Chapter 1: Matter and Measurements

Contents

Physical properties and states of matter

Système International Units

Uncertainty and significant figures

Dimensional analysis

Properties of Matter

Matter: Occupies space, has mass and inertia

Composition: Parts or components

ex. H2O, 11.9% H and 88.81% O

Properties: Distinguishing features

physical and chemical properties

States of Matter

Classification of Matter

3D Chemical Structure of a AP Chemistry Student

-Name, legal and invented chemical name

· Birth Day

· Male or Female

· Years in FW School District

· What am I doing or going to do to restore/ keep FWHS a to AZ school

· Favorite sport or activity

· Future career or life aspiration

· Best gift you have given someone else

· What I can do to make the world a better place

-Picture of yourself

-Describe yourself in 20 words or less OR describe the most

embarrassing or humorous situation you have been in within the

last year

- Build out a 3D model of your chemical

compound, using one of the VSEPR

Geometries and aback bone

Due 21-Aug-2017

Significant Figures

Number

6.29 g

0.00348 g

9.0

1.0 10-8

100 eggs

100 g

= 3.14159

Count from left from

first non-zero digit.Adding and subtracting.

Use the number of decimal

places in the number with the

fewest decimal places.

1.14

0.6

11.676

13.416

Significant

Figures

3

3

2

2infinite

bad notation

various

13.4

Significant figuresMultiplying and dividing.

Use the fewest significant

figures.

0.01208 0.236

Rounding Off

3rd digit is increased if

4th digit 5

Report to 3 significant figures.

10.235

12.4590

19.75

15.651

= 0.512

= 5.12 10-1

UnitsS.I. Units

Length meter, m

Mass Kilogram, kg

Time second, s

Temperature Kelvin, K

Quantity Mole, 6.022×1023 mol-1

Derived Quantities

Force Newton, kg m s-2

Pressure Pascal, kg m-1 s-2

Eenergy Joule, kg m2 s-2

Other Common Units

Length Angstrom, Å, 10-8 cm

Volume Litre, L, 10-3 m3

Energy Calorie, cal, 4.184 J

Pressure

1 Atm = 1.064 x 102 kPa

1 Atm = 760 mm Hg

Homework16-Aug

Ch.1: 36, 37, 42, 46, 55

Bell Work17-Aug-2017

The boiling point of Hg is ~630K, is that an

intensive or extensive property?

How many nm3 are in 4.5L?

ObjectivesBe confident in the content of Ch. 1

Pre Lab for Green House Gasses Experiment

design

Essential Question

Speaking Metaphorically, at the end of the day who is

responsible for your education and what is achieved

during it?

Green House GassesCO2

H2O CH4 C2H2F4

Testing Green House Gasses

You will use 2.0L soda bottle, a cooking

thermometer, and a gas to examine the

relationship between gas content and

temperature.

As a class develop procedures, data tables,

etc. for the project.

Dry: Air, CO2, CH4, O2

H2O vapor: Air, CH4, CO2, O2

Chemical and Physical ∆Physical change in a substance doesn't change

what the substance is.

Chemical change where there is a chemical

rxn, a new substance is formed and energy

is either given off or absorbed

What would this be: mixing HCl and NaOH

Separations

Separating Mixtures

1_17

Substances to

be separated

dissolved in liquid

Pure

liquid

A B C

mixture

Chromatography

Temperature

Relative Temperatures





18Aug17Bell Work

Mary was working in a chemistry lab with a mixture of

chemicals that was 90% water and weighed 20kg. After

returning to the lab from a weekend break, she calculated

the mixture was now 50% water.

How much does the mixture now weigh?

For purposes of this puzzle, assume the non-water part of

the mixture was not affected by evaporation.

18.Aug.17Only relying on your memory, what is the

relationship between base units and nano,

for instance meter to nanometer?

Centimeter to nanometer?


You will use 2.0L soda bottle, a cooking

thermometer, and a gas to examine the

relationship between gas content and

temperature.

As a class develop procedures, data tables,

etc. for the project.

Dry: Air, CO2, CH4, O2

H2O vapor: Air, CH4, CO2, O2

Bell Work 21.Aug.2017Make the following conversions and show the DA set up

I. How many mm is one lap around a 400m track?

II. If you could run the lap in 55sec. What speed

would your average speed be in km/hr?

III. What is the volume of a cube with sides of

4.5cm in liters?

IV. Start setting up your Green House Gas

experiment.





Volume

AgendaTest Green House Gases

Densityρ= m/V

m=V ρ V=m/ ρ

g/mL

Mass and volume are extensive properties

Density is an intensive property

Bell Work 19Aug2016What is the mass of a cube of osmium that is 1.25

inches on each side?

Have volume, need density = 22.48g/cm3

No Notes!

ConversionWhat is the mass of a cube of osmium that is 1.25

inches on each side?

Have volume, need density = 22.48g/cm3

AgendaGraph Green House Gases

PracticeWhich one of the following is the most

dense?

a. an object with a vol. of 3.91 x 10-24 nm3

and a mass of 7.93 x 10-14 ng

b. an object with a vol. of 139mL and a

mass of 93g

c. an object with a vol. of 0.00212 m3 and a

mass of 4.22 x 104 mg

d. an object with a vol. of 13 dm3 and a

mass of 1.29 x 103 µg

e. an object with a vol. of 2.5L and a mass

of 12.5kg

Wrong units

The Gimli Glider

Uncertainties• Systematic errors.

– Thermometer constantly 2°C too low.

• Random errors

– Limitation in reading a scale.

• Precision

– Reproducibility of a measurement.

• Accuracy

– How close to the real value.

Intensive and Extensive Properties

An intensive property is independent

of the amount of mass.

Examples:

Temp, pressure, specific volume, and density

The value of an extensive property varies directly

with the mass

Examples:

Mass and total volume

Lets try this again

PracticalUsing the equation

Zn(s) + HCl(aq) H2(g) + ZnCl2 (Aq)

and the formula V =nH2RT/P, how many mL

of H2 (g) are formed when 250.mg of Zn is

reacted with excess HCl?

(P = 748.mmHg, T = 21.0°C)

PracticalUsing the equation

Zn(s) + HCl(aq) H2(g) + ZnCl2 (Aq)

and the formula V =nH2RT/P, how many mL of H2 (g) are formed when

250.mg of Zn is reacted with excess HCl? (P = 748.mmHg, T = 21.0°C)

If the actual volume formed was____, what is

the percent yield of the reaction?

More Practicea. If there are six iggs per ogg and three oggs per id, how

many iggs are in four ids?

b. How many dozens of particles of dust are in 2.45

grams if each dust particle has a mass of 2.51 x 10-4 g?

c. Zinc has a density of 446 lb/ft3. What is the density of

zinc in g/cm3? (1lb = 0.454kg &1in = 2.54cm)

d. Perform the indicated operations and express the

answer with the proper number of significant digits.

28.1cm + 0.53cm + 75.321cm =

Bell Work22-Aug-2017

How many µg are in 0.0134 g?

What is the difference between precision

and accuracy? Give an example.






Lets get going!

Safety goggles!

Data tables1

Dry: Air, CO2, CH4, CH2FCF3

H2O vapor: Air, CH4, CO2, CH2FCF3

Online Quiz Ch. 1We will do this one as a class so you can see

how to complete it.

Bell Work23-Aug

- Get a computer out, log in, open up your gas

temp data set in the spread sheet you used





Bell Work24-Aug

Get a computer out, log in, open up your gas

temp data set in the spread sheet you used





20

22.5

25

27.5

30

32.5

35

37.5

40

42.5

45

47.5

50

52.5

55

57.5

60

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300

Tem

p (

C )

Time (s)

Green House Gases p3 2017Aug

CH2FCF3 Dry Temperature (°C)

CH2FCF3 wet

Air H2O

Dry CO2

Wet CO2

Wet CH4

Dry CH4

2 per. Mov. Avg. (Dry CH4)

Explanation of your Data

Using your graphs write an explanation of the

data. This should include a relationship

between temperature change and time as well

as rate of change for each treatment.

Based on your graphical data and analysis

account for the differences in ∆T and ∆T/ ∆t

assuming all other conditions were the same

(# of moles, testing locations/ conditions etc.)

Due typed up and emailed to Mr. Golden by 8:30am 25Aug

Explanation of your Data

Read “ Module 4 – Atmospheric Chemistry”

Using your graphical data, and what you have

read, account for the differences in

temperature change and rate for each of the

gases. You should use characteristics of each

gas and information from the reading (light

energy, heat, Lewis structure, symmetry, etc.)

to account for the graphical information.

Documents

Chapter 1: Matter and Measurement1_AP+Class...Separating Mixtures 1_17 Substances to be separated dissolved in liquid Pure liquid A B C mixture Chromatography. Temperature. Relative