Chemistry 1 Assignments

 

Finish "Limiting Reactant" Lab for basket tomorrow.

 

 

Finish "Limiting Reactant" WS.

 

1. NaOH (0.0628 mol NaOH < 0.0656 mol H₂SO₄)

2. HCl (0.0952 mol HCl < 0.101 mol Mg(OH)₂)

3. 12.1 g CrCl₃ produced with 0.14 g Cr left over

4. 17.0 g Fe

5. I₂O₅ (0.007910 mol I₂O₅ < 0.008674 mol SF₄)

6. 23.4 g H₂O produced with 11.7 g N₂O₄ left over 

 

Finish stoich lab "Decomp of Sodium Bicarbonate" for basket.

 

Finish "Stoichiometry" WS.

 

1. 3.75 mol O₂

2. 1.88 mol H₂

3. 272 mL HI

4. 50.0 L SO₂

5. 3.54 g S₈

6. 1.55 g C₆H₆

7. 106 g AlCl₃

8. 90.2 L H₂

9. 0.382 g Sb

10. 10.1 g Al

 

Final strikes on Double-Replacement due tomorrow if you picked up your Second Strike today after the quiz.

Unit 5 "Test" (not as hefty due to previous quiz)

Chemical Reactions & The Mole

 

1. Predicting Products of chemical reactions (synthesis, decomposition, single replacement, double replacement, combustion)

2. Mole conversions (involving volume in Liters; particles in atoms, ions, molecules, and formula units; and mass in grams) 

3. Density calculations using mass and volume (and vice versa)

 

**% composition, empirical and molecular formulas (along with Hydrate Lab) will be lumped into "Unit" 6 - Stoichiometry

 

KEY (put s,l,g,aq if solubility rules from SR/DR reactions can be applied)

1. 2Na(s) + Cl₂(g) --> 2NaCl

2. 2Al(s) + 6HCl(aq) --> 3H₂(g) + 2AlCl₃

3. MgO(s) + H₂O(l) --> Mg(OH)₂(s)

4. CH₄(g) + 2O₂(g) --> CO₂(g) + 2H₂O(g)

5. KCl(aq) + AgNO₃(aq) --> AgCl(s) + KNO₃(aq)

6. 2NaHCO₃(s) --> Na₂CO₃(aq) + CO₂(g) + H₂O(g)

7. 2.19x10²¹ f.un Pb(ClO₄)₂

8. 36.2 g C₄H₁₂N

9. 3.26 L He

10. 0.332 g H₂

11. 3.17 g/L Cl₂

12. 131 g/mol, Xe

13. Aluminum will react with 4 solutions (HCl, ZnSO₄, CuSO₄, AgNO₃). Mg>Al>Zn>H>Cu>Ag. Because aluminum (Al) is lower in the activity series than magnesium (Mg) and higher in the activity series than zinc (Zn), hydrogen (H), copper (Cu), and silver (Ag), then aluminum (Al) will undergo single replacement with zinc sulfate (ZnSO₄), hydrochloric acid (HCl), copper sulfate (CuSO₄), and silver nitrate (AgNO₃).

14. 2Al + 3H₂SO₄ --> 3H₂ + Al₂(SO₄)₃(aq)

15. Cl₂ + 2KI --> I₂ + 2KCl

16. Cu + FeS --> NR

17. 2Li + 2H₂O --> H₂ + 2LiOH(aq)

18. NaCl + Br₂ --> NR

19. Pb + H₂O --> NR

20. 2H₃PO₄ + 3Ca(OH)₂ --> 6H₂O(l) + Ca₃(PO₄)₂(s)

21. 2HC₂H₃O₂ + Ba(OH)₂ --> 2H₂O(l) + Ba(C₂H₃O₂)₂

22. 3Sr(NO₃)₂ + 2K₃PO₄ --> Sr₃(PO₄)₂(s) + 6KNO₃

23. (NH₄)₂CO₃ + 2AgNO₃ --> 2NH₄NO₃ + Ag₂CO₃(s)

24. Ni(NO₃)₃ + K₃PO₄ --> NiPO₄(s) + 3KNO₃

25. CuCl₂ + H₂S --> CuS(s) + 2HCl

 

Finish "Hydrate" lab for basket.

 

Finish "Empirical/Molecular Formulas" WS.

 

EF:

1. C₅H₁₀O

2. potassium permanganate

3. aluminum chloride

4. barium sulfate

MF:

1. Dicarbon dihydride

2. Diiodine pentoxide

3. C₅H₁₀O₂

4. H₂O₂ (hydrogen peroxide)

5. C₄H₁₂N₂

 

Finish Part 3 (stapled to data for basket) of "Double Displacement Reactions" Lab.

 

Finish "Single Replacement and Double Replacement Reactions" WS (front and back).

 

Check!

1. 2,3 --> 3H₂(g) + Al₂(SO₄)₃ (aq)

2. 1,2 --> I₂ + 2KCl (aq)

3. NR

4. 2,2 --> H₂ + 2LiOH (aq)

5. NR

6. 1,2 --> H₂ + Sn(OH)₂(s)

7. 2,1 --> H₂ + Pb(NO₃)₂(aq)

8. 1,1 --> Cu + NiCl₂(aq)

9. 2,1 --> Zn + 2NaNO₃(aq)

10. NR

11. NR

1. 1,1 --> CuS(s) + 2HCl

2. 1,2 --> 2NH₄NO₃ + Ag₂CO₃(s)

3. 1,2 --> 2H₂O(l) + Na₂SO₄

4. 2,3 --> Fe₂(CrO₄)₃(s) + 6KNO₃

5. 3,2 --> Ba₃(PO₄)₂(s) + 6NaI

6. 2,3 --> 6H₂O(l) + Ca₃(PO₄)₂(s)

7. 2,1 --> 2H₂O(l) + Ba(C₂H₃O₂)₂

8. 3,2 --> Sr₃(PO₄)₂(s) + 6KNO₃

9. 1,2 --> PbCl₂(s) + 2NaNO₃

10. 1,2 --> Ca(NO₃)₂ + 2AgBr(s)

11. 1,1 --> NiPO₄(s) + 3KNO₃

 

Practice problems! Complete (and balance, always!)

1. barium chloride + potassium chromate --> ?

2. strontium acetate + lithium hydroxide --> ?

3. zinc sulfate + sodium carbonate --?

4. manganese (II) nitrate + potassium hydroxide --> ?

5. nitric acid + ammonium hydroxide --> ?

6. sulfuric acid + potassium hydroxide --> ?

7. chloric acid + strontium hydroxide --> ?

8. phosphoric acid + sodium hydroxide --> ?

 

Check answers!

1. 1,1,1,2

2. 1,2,1,2

3. 1,1,1,1

4. 1,2,1,2

5. 1,1,1,1

6. 1,2,2,1

7. 2,1,2,1

8. 1,3,3,1

 

Finish "Relative Reactivities of Metals" Lab (for basket).

 

For those with complete reactions, balance!

 

1. nickel + tin (II) sulfate --> nickel(II)

2. cobalt + cadmium nitrate --> cobalt(II)

3. manganese + sulfuric acid --> manganese(IV)

4. potassium + water --> 

5. nickel + silver nitrate --> nickel(I)

6. gold + silver nitrate --> gold(IV)

7. cadmium + hydrochloric acid -->

8. strontium + water -->

 

Balancing (if the salt is written first as a product)

1. 1,1,1,1

2. 

3. 1,2,1,2

4. 2,2,2,1

5. 1,1,1,1

6.

7. 1,2,1,1

8. 1,2,1,1

 

1. Finish "Moles #2" WS. (112 g/mol Freon-12 is actually 121 g/mol Freon-12)

2. Get Progress Report signed. (turn into the basket on Wednesday)

 

*Wednesday, 11/23 = Unit 5(a Quiz) on chemical reaction types and balancing (based on 11/15, 11/17, and 11/21 WS).

 

Finish "Writing Chemical Equations" WS.

 

Check your work!

1. 1,1,1,1,1

2. 8,1,8

3. 1,1,1,1

4. 1,1,1,1

5. 1,1,1,1

6. 1,1,1

7. 1,5,2

8. 1,1,1,1

9. 2,2,3

10. 1,2,2,1

11. 1,2,1,1

12. 1,5,3,4

13. 3,1,1

14. 2,3,2

15. Hg(l) + FeSO₄ --> NR

16. 2,1,2

NO homework unless

a) you're a junior who missed Tuesday the 15th and Thursday the 17th. That work must be stamped on Monday for full credit, or

b) you've forgotten all that you memorized from Unit 4: ions (Column 1, 2, 5, 6, 7, and the Nose), polyatomic ions (Model 2 from the POGIL, cyanide), and how to name/write formulas for ionic/molecular compounds and acids

 

Finish "Moles" WS.

 

(#4, 7, 10 should be at STP, which is 0 degree Celsius and 1 atmosphere).

 

 

"Types of Chemical Reactions" WS stamped in class!

 

Check your work!

double, single, combination, double, decomposition, single, double, double, combination, decomposition, combustion, combustion, single, combination, decomposition

1. 2,1,1,2

2. 2,1,2,1

3. 2,1,2

4. 3,2,3,2

5. 1,1,1

6. 1,1,1,1

7. 1,1,1,1

8. 1,1,2,1

9. 2,2,3,2

10. 2,2,1

11. 1,8,6,5

12. 2,7,6,8

13. 4,3,4,3

14. 16,1,8

15. 2,2,3

 

Finish "Molar Mass" WS.

 

Check your molar masses!

(If they're wrong, your formula might be wrong... or my typo :/ )

1. 18.02 g

2. 110.98 g

3. 159.62 g

4. 169.9 g

5. 98.09 g

6. 310.1 g

7. 105.99 g

8. 28.02 g

9. 122.55 g

10. 331.2 g

11. 161.98 g

12. 136.28 g

13. 40.31 g

14. 228.2 g

15. 32.00 g

"Balancing Equations" WS was stamped in-class.

 

Check if you balanced correctly!

1. 2,1,3

2. 1,8,2,4

3. 5,1,1,3

4. 1,2,1,2

5. 1,1,2,1

6. 2,3,1,3

7. 1,8,6,5

8. 2,3,6,1

9. 2,2,8,2,2,4,1

10. 2,25,16,18

Check your notes (and POGIL balancing)!

 

Element (m) + Element (nm) --> (ionic) Compound

(ionic/covalent) Compound + (covalent) Compound --> (ionic) Compound (maybe acid)

(binary ionic/covalent) Compound --> Element (m/nm) + Element (nm)

(ternary ionic) Compound --> (ionic) Compound + (covalent?) Compound/Element

Element (m/nm) + (ionic/acid) Compound --> Element (m/nm) + (ionic) Compound

(ionic) Compound + (ionic) Compound --> (ionic) Compound + (ionic) Compound

(acid) Compound + (OH-) Compound --> Compound (water) + (ionic) Compound

(covalent hydrocarbon) Compound + (oxygen) Element = (covalent carbon dioxide) Compound + (covalent water) Compound

 

#23b. 1, 6, 6, 6

 

15. 2LiBr + F₂ --> Br₂ + 2LiF

16. FeBr₃ + 3NaOH --> Fe(OH)₃ + 3NaBr

17. P₂O₅ + 3H₂O --> 2 H₃PO₄

 

**Add to your notes for each reaction type: (I'll stamp this!)

a. Characterize* the reactants

b. Characterize* the products

 

*Is it an element or compound?

Element: metal or nonmetal?

Compound: ionic, covalent, or acid?

 

In your notes (to be stamped):

 

Define (and provide examples) of the 5 types of reactions:

1. Synthesis

2. Decomposition

3. Single replacement

4. Double replacement

5. Combustion

 

 

For Monday:

4. Naming acids and ionic/molecular compounds given formulas (and vice versa)

5. (Lewis dot structures) + VSEPR (shape, name, angle, polarity)

 

Na₂S

Cr(OH)₃

copper (III) nitride

magnesium acetate

AgNO₂

ammonium oxide

Sb₂Se₇

tetrachlorine nonoxide

acetic acid

hydronitric acid

H₃PO₄

H₂S

hydrocyanic acid

oxalic acid

 

For Friday:

1. Periodic Trends: atomic radius, ionization energy, electronegativity

 

Finish practice of "How To Draw Lewis Dot Structures." (If you need to check the last four, see attached picture.)

 

How's your memorization? Test is upcoming.

1. Element/Symbol

2. Ions w/ one charge

3. Polyatomic ions (Model 2, cyanide)

4. Numerical prefixes

 

Finish "Naming and Formula Practice" WS.

 

Check your work!

 

P.S. Just learned that cyanic acid is hydrocyanic!! Will mention it tomorrow in class before dot structures.

 

 

Memorize Model 2 (Common Polyatomic Ions).

Also cyanide (CN^-).

 

POGIL "Naming Molecular Compounds" summary here!

 

Summarize "Naming Ionic Compounds" POGIL here.

 

 

Finish "It's In the Cards."

 

You know the drill: "Periodic Trends" summary here.

 

 

Turn in (pink) Review Sheet for Unit 3 (Atoms and Electrons) tomorrow.

 

 

Finish "Light, Energy Level, E-Configuration" WS

Start studying for Friday (i.e. pink RS).

 

Begin memorization (and digestion) of e-configuration.

 

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d¹⁰6p⁶7s²5f¹⁴6d¹⁰7p⁶

 

^look: I'm practicing.

 

Finish "Electron Cloud" WS.

 

Summarize POGIL "Ions" here. :)

 

Finish "Isotopes Make Cents" WS.

 

Ver. 1: Average Mass = 2.604 g

Ver. 3: Average Mass of New = 2.502 g

Average Mass = 3.012 g

 

Finish "Average Atomic Mass" WS. 

 

 

1. Potassium

19, 19, 20

19, 19, 21, ⁴⁰₁₉K

K-41, 19, 19, 22, ⁴¹₁₉K

39.09 amu

 

2. Nitrogen

7, 7, 7, ¹⁴₇N

N-15, 7, 7, 8, ¹⁵₇N

14.01 amu

 

4. Chlorine

17, 17, 18, ³⁵₁₇Cl

Cl-37, 17, 17, 20, ³⁷₁₇Cl

35.45 amu

 

1. 107.87 amu

2. 55.85 amu

3. 47.88 amu

4. 195.1 amu

5.

⁵⁶₂₆Fe, 26, 56, 26, 30, 26

⁶⁷₃₀Zn, 30, 67, 30, 37, 30

⁷⁸₃₄Se, 34, 78, 34, 44, 34

⁸⁸₃₈Sr, 38, 88, 38, 50, 38

¹²⁰₅₀Sn, 50, 120, 50, 70, 50

¹³¹₅₄Xe, 54, 131, 54, 77, 54

 

Hey all, thanks for being proactive about using the same link before, but for those dazed souls out there (like me): please submit summary of "Average Atomic Mass" POGIL here. 

 

Finish "Mystery Powder Lab."

 

 

(Yellow) Review Sheet is due tomorrow.

 

1. Classification of Matter

          a. Elements, Compounds, and Mixtures

          b. Metals, Nonmetals

          c. Chemical and Physical Properties

2. Fundamental Laws

          a. Conservation of Mass

          b. Conservation of Energy (Potential vs. Kinetic)

          c. Definite (# of atoms in a compound) and Multiple Proportions (% by mass*)

3. Chemical and Physical Changes (CER!!)

4. States of Matter

          a. Differences between solids, liquids, and gases (including energy, attractions, particles, etc.)

          b. Phase Changes (including exothermic, endothermic, melting/boiling points)

5. (memorized forever) Elements/Symbols

 

*helpful but not guaranteed on the test

 

Also I lost my homework CER examples. Here's some select examples from "Unit 2 Review" WS #9.

 

C: Combustion is a chemical change.

E: Wood was light tan before burning. Wood was charred black after burning. Gray/white smoke poured out of test tube during burning.

R: If/when/because color changes and gas production, combustion is a chemical change. 

Sublimation

C: Sublimation is a physical change.

E: Iodine was a dark gray/purple, dull solid before heating. During heating, the iodine turned into dark purple gas, which solidified against the cold crucible as shiny, needle-like dark gray/purple crystals.

R: If/when/because iodine underwent a phase change from solid to gas, this was a physical change.

Cutting Al Foil

C: Cutting aluminum foil is a physical change.

E: Aluminum is a silver, shiny metal before cutting with a density of 2.7 g/mL. After cutting, aluminum is a silver, shiny metal with a density of 2.7 g/mL. Aluminum also reacted with copper chloride solution the same before or after cutting.

R: If physical and chemical properties did not change, then a physical change occurred.

 

This is a group writeup (3-4 students write one document together). I will be checking the history so everyone must contribute equally.

 

The document required for the "Observation and Experimentation Lab" is found here.

 

Directions:

1. Copy the Doc to your own drive and share with all members of your group.

2. Share your group's Doc with me ([email protected]).

3. Upload the Doc to the correct period on turnitin.com.

4. Print one hard copy for the basket for Friday, Sept 23.

 

Remember, our class is:

 

Finish "Unit 2 Matter and Energy Review" WS.

 

 

1. Finish "Definite Proportions and Conservation of Mass" WS.

2. Get signatures for progress report. Turn into basket before bell rings.

3. (If you like flashcards) Prep cards to memorize pink "Symbols and Names" sheet for Friday's quiz.

 

1. 15 atoms

2. C₈H₁₁NO₃

3. 14 atoms

4. C₃H₅O₃(NO₂)₃

5. 1.600 g oxygen

6. 0.975 g zinc sulfide

7. 0.252 g sulfur

 

Please upload your CER responses from the "Physical and Chemical Changes" Lab (that was due Friday, Sept 16) on turniton.com.

 

Code: 13580361

PW: chemishih

 

 

1. Go to File and "Make a Copy" of this lab response Google doc to your own Google Drive.

2. Complete sentences and CER are required. Use more than one piece of evidence.

3. Share your Google doc with me ([email protected]).

4. Print out a hard copy to drop into the basket before the bell rings.

 

Summarize POGIL Fundamental Chemical Laws here.

 

"Classification of Matter" POGIL Summary here.

 

Complete Unit 1 - Metric System Review Sheet (RS).

 

This will help you review for your test on Friday.

 

1. Rewrite 5 homework/lab problems on a separate piece of paper. (Try to choose at least 1 problem from each worksheet.)

2. Solve your own problems on the back. This will be the "answer key."

 

Finish "Heat and Temperature" WS.

 

 

P.S. 11 is now optional. ;)

Classwork 

 

Summarize "Calorimetry" POGIL here.

 

"Target Density Lab" WS.

 

"Density" Lab. 

 

*Remember, CER stands for "Claim, Evidence, and Reasoning," so state your answer, provide numbers for support, and sum it all up: "if/when..., then..."

 

"Measuring and Significant Figures" Lab. Turn in on Monday.

 

*Remember! Evidence must contain numbers.

 

Finish "Operations with Significant Figures" WS

 

 

 

 

 

 

OPTIONAL "Significant Figures" (One-sided) WS

 

 

 

 

 

Please write "Significant Zeros" summary.

HW

 

Please write "Significant Figures and Measurements" summary.

 

Finish "Conversions 2" WS

 

 

Finish "Conversions" WS

 

 

Finish "Unit Analysis" WS.

 

Print and sign (1) syllabus and (2) safety contract

 

Homework (HW)

 

Supplies for class 

1. 3-ring binder (1.5 in. - 2 in.), loose-leaf paper

2. Writing instruments (colors can be beneficial!)

3. Scientific (not graphing) calculator

 

*Remember: no need to bring textbooks to class unless otherwise requested.

In-class (IC) activity:

 

Using our Chromebooks, we will

1. Review the syllabus and safety contract

2. Sign the Academic Honesty policy

3. Complete the Student Info Sheet