General Chemistry Bell Ringers Semester 2 Write 3 sentences minimum about the following chapter objectives. You may write all 3 about one objective. You may write one sentence for each. You could also choose a combination of the objectives in any order to total your 3 sentences. Objectives 1. To describe Rutherford’s model of the atom 2. To explore the nature of electromagnetic radiation 3. To see how atoms emit light Write 3 sentences minimum about the following chapter objectives. You may write all 3 about one objective. You may write one sentence for each. You could also choose a combination of the objectives in any order to total your 3 sentences. Objectives 1. To understand how the emission spectrum of hydrogen demonstrates the quantized nature of energy 2. To learn about Bohr’s model of the hydrogen atom 3. To understand how the electron’s position is represented in the wave mechanical model Write 3 sentences minimum about the following chapter objectives. You may write all 3 about one objective. You may write one sentence for each. You could also choose a combination of the objectives in any order to total your 3 sentences. Objectives 1. To learn about the shapes of the s, p and d orbitals 2. To review the energy levels and orbitals of the wave mechanical model of the atom 3. To learn about electron spin Write 3 sentences minimum about the following chapter objectives. You may write all 3 about one objective. You may write one sentence for each. You could also choose a combination of the objectives in any order to total your 3 sentences. Objectives 1. To understand how the principal energy levels fill with electrons in atoms beyond hydrogen 2. To learn about valence electrons and core electrons 3. To learn about the electron configurations of atoms with Z < 18 4. To understand the general trends in properties in the periodic table Bell Ringer Sketch a periodic table shape in your learning log…Write the s,p,d and f in the areas of the table they are found. Bell Ringer What is the period of the element Si? Is it in the s,p,d, or f? What is the noble gas that comes before it? Using these three answers…Write the electron configuration the long way and the noble gas configuration (short way) for Silicon. Bell Ringer Where would you find the most reactive nonmetal and metal on the periodic table? Think about the number of valence electrons they have and how close they are to the surface for bonding. Why does this make sense? Bell Ringer Quiz sneak peak… How many valence electrons does Boron have? What is the charge of a P? Is K in the s,p,d or f block? Bell Ringer Chapter 11 Test Today… Pick up our remote. Have your periodic table out & calculator is you want. Good Luck! Write 3 sentences minimum about the following chapter objectives. You may write all 3 about one objective. You may write one sentence for each. You could also choose a combination of the objectives in any order to total your 3 sentences. Objectives 1. To learn about ionic and covalent bonds and explain how they are formed 2. To learn about the polar covalent bond 3. To understand the nature of bonds and their relationship to electronegativity 4. To understand bond polarity and how it is related to molecular polarity Write 3 sentences minimum about the following chapter objectives. You may write all 3 about one objective. You may write one sentence for each. You could also choose a combination of the objectives in any order to total your 3 sentences. Objectives 1. 2. 3. 4. To learn about stable electron configurations To learn to predict the formulas of ionic compounds To learn about the structures of ionic compounds To understand factors governing ionic size Write 3 sentences minimum about the following chapter objectives. You may write all 3 about one objective. You may write one sentence for each. You could also choose a combination of the objectives in any order to total your 3 sentences. Objectives 1. To learn to write Lewis structures 2. To learn to write Lewis structures for molecules with multiple bonds Bell Ringer Draw the Lewis Dot Structure for N2…Note that it will have more than just single bonds. Be ready to share with your neighbor and then one volunteer will draw this for the class. Bell Ringer How many valance electrons would the following have? Ca B O Cl The elements above form 1,2, or 3 bonds each. Label each with the number of bonds it will form. Write 3 sentences minimum about the following chapter objectives. You may write all 3 about one objective. You may write one sentence for each. You could also choose a combination of the objectives in any order to total your 3 sentences. Objectives 1. To understand molecular structure and bond angles 2. To learn to predict molecular geometry from the number of electron pairs 3. To learn to apply the VSEPR model to molecules with double bonds Bell Ringer Pick One at your ability level… Practice Drawing the Lewis Dot Structures for: Just Learning to Swim- HCl Got My Wings-O2 Master of the Universe- CH2O Bell Ringer Math and Science use many of the same language… Write a short definition of what linear, tri, planar, tetrahedral, and pyramid mean. Be PREPARED…You will be sharing these with a classmate and then the class. Bell Ringer A student argues that the molecules H2Se has a linear molecular structure. Is this student correct or incorrect? You will need to draw out its Lewis Dot Structure and look at page 431 for reference of VESPR shapes. Be ready to share this with our table partner and then vote with the class. Bell Ringer Break out your Periodic Tables and remotes for the C12 test…While waiting, make this final entry in our Learning Log for this unit: True or False: Carbon dioxide has 2 pairs of shared and 2 pairs of unshared electrons. I will be looking for a volunteer to draw this image on the board for us. Bell Ringer Think LITTLE!!! How does the Bottle Crush Demonstration you are about to see work? Write 5 sentences explaining the energy, space and what the molecules are doing to make the bottle crush… Bell Ringer Use our conversion factor method to solve the following Example: 10 g He x 1 mol He = 4 g He How many torr are in 1.2 atm? How many atm are 680 mm Hg? How many Kpa is 2.56 atm? Bell Ringer If a student is asked to convert 1.75 atm into kPa and mmHg, is the student correct if they conclude that there are 177 kPa and 1300 mmHg? Justify your reasons… Bell Ringer A balloon with a volume of 2.0 L is filled with a gas at 3 atmospheres. If the pressure is reduced to 0.5 atmospheres without a change in temperature, what would be the volume of the balloon? Bell Ringer A 600 mL sample of nitrogen is heated from 27 °C to 77 °C at constant pressure. What is the final volume? Bell Ringer Determine the pressure change when a constant volume of gas at 1.00 atm is heated from 20.0 °C to 30.0 °C. Bell Ringer 2.00 L of a gas is collected at 25.0 °C and 745.0 mmHg. What is the volume at STP? Bell Ringer What volume of oxygen gas is needed to produce 0.626 L of carbon dioxide gas? Assume all volume measurements are made at the same temperature and pressure. C3H8 + O2 CO2 + H2O Bell Ringer A gas sample occupies 8.77 L at 20 degrees C. What is the pressure in atm, given that there are 1.45 mol of gas in the sample? Bell Ringer Exam 13 is today… Please have your Learning Log out for grading. You will need your periodic table, remote and a calculator. Bell Ringer Take your bell ringer page and divide it into the following spaces: Key Words I Heard A Picture or Sketch from the Video Intermolecular Forces Minimum 3 Facts A Question I Could Ask Bell Ringer Link https://www.youtube.com/watch?v=S8QsLUO_t gQ Fill out your grid. When complete, write a 11 sentence minimum paragraph about the content of the video. It will be graded with the WAC rubric. Bell Ringer Calculate the energy (in kJ) required to heat 35 grams of a liquid water from 20 degrees Celsius to 100 degrees Celsius. The specific heat of water is 4.18 J/gC, and the molar heat of vaporization of water is 40.6 kJ/mol. See page 496 for help… Bell Ringer Complete the following Chart: Phase Change Condensation Sublimation Deposition Evaporation Melting Freezing Energy Absorb or Released Bell Ringer How much energy is required to melt 10.5 grams of ice at 0 degrees Celsius. The molar heat of fusion for ice is 6.02 kJ/mol. See page 495 if needed for reference. Bell Ringer Exam 14 is today… Please have your Learning Log out for grading. You will need your periodic table, remote and a calculator. Hg, Ag, Zn, & Cu Cation Lab Day! Have your Composition Notebook out for Labs Make the entry in the Table of Contents Name Period # General Chemistry Lab Book 1 Page Content 1 Table of Contents 2 Measurements Lab 3-5 Separation of a Mixture 7-9 Percentage of Water 11-15 Flame Test Lab 17-19 Group IA & IIA Cations 21-24 Fe, Mn, Cr & Ni Cations Lab 25-29 Hg, Ag, Zn, Cu Cations Lab Bell Ringer You will be continuing your lab on Hg, Ag, Zn and Cu Cation identification. BEFORE you can begin, your lab must be checked to ensure that it has the following parts: Questioning: Predicting: Procedure: (check for variables) Safety: Bell Ringer This is your Unknown Identification portion of the lab on Hg, Ag, Zn, & Cu Cation identification. Be seated and ready for attendance before finishing your lab. Remember that your final sections should have the following parts: Data & Observations: Calculations & Results: Qualitative!!! Discussion of Results: Additional Questions: COMPLETE SENTENCES Bell Ringer This is your final day of the lab on Hg, Ag, Zn, & Cu Cation identification. Be seated and ready for attendance before finishing your lab. Remember that your final sections should have the following parts: Data & Observations: Calculations & Results: Qualitative!!! Discussion of Results: Additional Questions: COMPLETE SENTENCES Additional Questions 1) Some cations can be manipulated into being soluble. What can you do to force a metal or partially soluble substance to dissolve. 2) What type of reaction are the reactions we are studying…synthesis, decomposition, single displacement or double displacement? Bell Ringer Draw a picture of a saturated and unsaturated solutions of salt water…Who has the most salt? Does the NaCl stay together? Bell Ringer A solution is prepared by mixing 2.00 g of calcium chloride with 100.0 g of water. What is the mass % of calcium chloride in this solution? (don’t forget the TOTAL is 2.00 + 100.0) Bell Ringer What is the Molar Mass of Ca(OH)2 and C6,H12,O6? If I have 41.0 grams of each…How many moles of each do I have? Bell Ringer What is the molarity of a solution that has 12.5 g of NaCl and enough water added to make 2.0 L of solution? Bell Ringer Is the following equation balanced? Co(NO3)2 Co2+ + NO3If I have 3 moles of Co(NO3)2, would I be correct if I said you could make 3 moles of NO3-? Calcium Composition Lab Day! Have your Composition Notebook out for Labs Make the entry in the Table of Contents Name Period # General Chemistry Lab Book 1 Page Content 1 Table of Contents 2 Measurements Lab 3-5 Separation of a Mixture 7-9 Percentage of Water 11-15 Flame Test Lab 17-19 Group IA & IIA Cations 21-24 Fe, Mn, Cr & Ni Cations Lab 25-29 Hg, Ag, Zn, Cu Cations Lab 31-35 Calcium Composition Lab Bell Ringer You will be continuing your lab on Calcium Composition. BEFORE you can begin, your lab must be checked to ensure that it has the following parts: Questioning: Predicting: Procedure: (check for variables) Safety: Bell Ringer This is your final Calcium Composition Lab Day. Be seated and ready for attendance before finishing your lab. Remember that your final sections should have the following parts: Data & Observations: Calculations & Results: Qual & Quant!!! Discussion of Results: Additional Questions: COMPLETE SENTENCES Additional Questions See the Analysis & Interpretation and Conclusion sections: Show all work in the additional questions section but record as they instruct in your data table. Bell Ringer What volume of 12 M sulfuric acid must be used to prepare 1.25 L of 1.5 M sulfuric acid solution? Bell Ringer Exam 15 is today… Please have your Learning Log out for grading. You will need your periodic table, remote and a calculator. Bell Ringer Compare and contract the Arrhenius and Bronsted-Lowry concepts of acids and bases…Be prepared to share at the end of the class period with the class. Bell Ringer Balance the following reaction: Zn + H2SO4 ZnSO4 + H2 Mg + O2 MgO CaC2 + H2O Ca(OH)2 + C2H2 (CH3)2CHOH + O2 H2O + CO2 CuSO45H2O CuSO4 + H2O Bell Ringer Calculate [H+] or [OH-] as required for each of the following solution at 25 degrees Celsius, state whether the solution is neutral, acidic or basic. 1.0 x 10-3 OH1.0 x 10-8 OH- Bell Ringer Kw = [H+] [OH-] = 1.0 x 10-14 [H+] = 1.0 x 10-14 = 1.0 x 10-14 = 1.0 x 10-11 [OH-] 1.0 x 10-3 Note: [OH-] 1.0 x 10-3 is greater than [H+] 1.0 x 10-11 SOOOO It is basic Kw = [H+] [OH-] = 1.0 x 10-14 [H+] = 1.0 x 10-14 = 1.0 x 10-14 = 1.0 x 10-6 [OH-] 1.0 x 10-8 Note: [OH-] 1.0 x 10-8 is greater than [H+] 1.0 x 10-6 SOOOO It is acid Bell Ringer What is the pOH of a solution that has a pH of 8.1? What is the [H+] of a solution that has a pH 7.6? Bell Ringer What is the pOH of a solution that has a pH of 8.1? pH + pOH = 14.00 pOH = 14.00 – pH pOH = 14.00-8.1 = 5.9 What is the [H+] of a solution that has a pH 7.6? -pH = -7.6 [H+] = inverse log (-7.6) = 5.00 x10-4 so…5.0 x10-4 is also the pH (2 sig figs) Bell Ringer If a student claims that you can mix 50 ml of 0.10 M of NaOH with 50 ml of a solution of 0.10 M Ca(OH)2 to neutralize them…would this work? Bell Ringer Determine the volume of 0.200 M NaOH needed to titrate 75.0 ml of 0.300 M HCl? Bell Ringer What is a buffer solution? Bell Ringer What is a buffer solution? A solution that resists a change in pH when either an acid or a base are added. Bell Ringer Exam 16 is today… Please have your Learning Log out for grading. You will need your periodic table, remote and a calculator. Redox Lab Day! Have your Composition Notebook out for Labs Make the entry in the Table of Contents Name Period # General Chemistry Lab Book 1 Page Content 1 Table of Contents 2 Measurements Lab 3-5 Separation of a Mixture 7-9 Percentage of Water 11-15 Flame Test Lab 17-19 Group IA & IIA Cations 21-24 Fe, Mn, Cr & Ni Cations Lab 25-29 Hg, Ag, Zn, Cu Cations Lab 31-35 Calcium Composition Lab 37-38 Redox Lab Bell Ringer Additional Question: If you wanted to make 3 M NaOH…How would you make it? Bell Ringer Describe how either increasing temperature or adding a catalyst will increase the rate of a chemical reaction. MINIUM 3 Sentences Bell Ringer Review the objectives below. Write a minimum of a FIVE sentence response to one or more of the objectives. 1. To understand the collision model of chemical reactions 2. To understand activation energy 3. To understand how a catalyst speeds up a chemical reaction 4. To explore reactions with reactants or products in different phases 5. To learn how equilibrium is established 6. To learn about the characteristics of chemical equilibrium Bell Ringer Review the objectives below. Write a minimum of a FIVE sentence response to one or more of the objectives. 1. To understand the law of chemical equilibrium 2. To learn to calculate values for the equilibrium constant 3. To understand how the presence of solids or liquids affects the equilibrium expression Bell Ringer Review the objectives below. Write a minimum of a FIVE sentence response to one or more of the objectives. 1. To learn to predict the changes that occur when a system at equilibrium is disturbed 2. To learn to calculate equilibrium concentrations 3. To learn to calculate the solubility product of a salt 4. To learn to calculate solubility from the solubility product Bell Ringer You are given the formula… K = [NH3]2 [N2][H2]3 Write this formula as the original chemical equation that the reaction represents. Bell Ringer Today we are grading your End of Chapter Questions and Learning Log. Please look at these questions and decide as a class ONE question of your choice to have me work out before grading. Make it count Bell Ringer Exam 17 is today… Please have your Learning Log out for grading. You will need your periodic table, remote and a calculator. Titration Lab Day! Have your Composition Notebook out for Labs Make the entry in the Table of Contents Name Period # General Chemistry Lab Book 1 Page Content 1 Table of Contents 2 Measurements Lab 3-5 Separation of a Mixture 7-9 Percentage of Water 11-15 Flame Test Lab 17-19 Group IA & IIA Cations 21-24 Fe, Mn, Cr & Ni Cations Lab 25-29 Hg, Ag, Zn, Cu Cations Lab 31-35 Calcium Composition Lab 37-38 Redox Lab 39-41 Titration Lab Bell Ringer You will be continuing your lab on Titration. BEFORE you can begin, your lab must be checked to ensure that it has the following parts: Questioning: Predicting: Procedure: (check for variables) Safety: Bell Ringer This is your final day for data collection. Be seated and ready for attendance before finishing your lab. Remember that your final sections should have the following parts: Data & Observations: Calculations & Results: Qualitative & Quantitative!!! Discussion of Results: Additional Questions: COMPLETE SENTENCES Additional Questions 1) When you added deionized water to the HCl solution in the Erlenmeyer flask before titrating, why did the addition of water not affect the results? 2) What characteristic of phenolphthalein made it appropriate to use in this titration? 3) Could you have done the experiment without it? 4) How does phenolphthalein’s end point relate to the equivelence point of reaction? Bell Ringer Describe what a Redox Reaction is… Which reactant is being reduced and which is being oxidized in the following reaction? 2 Mg + O2 2MgO Bell Ringer Choose one of the three example below. Be ready to explain what the oxidation numbers are on each of the elements it is composed of. CO2 SF6 NO3- Bell Ringer What is the difference between a reducing agent and oxidizing agent and reduction/oxidation? Bell Ringer Review the objectives below. Write a minimum of a FIVE sentence response to one or more of the objectives. 1. To understand oxidation and reduction in terms of oxidation states 2. To learn to identify oxidizing and reducing agents 3. To learn to balance oxidation-reduction equations using half reactions Bell Ringer Review the objectives below. Write a minimum of a FIVE sentence response to one or more of the objectives. 1. To understand the concept of electrochemistry 2. To learn to identify the components of an electrochemical (galvanic) cell 3. To learn about commonly used batteries Bell Ringer Review the objectives below. Write a minimum of a FIVE sentence response to one or more of the objectives. 1. To understand corrosion and ways of preventing it 2. To understand electrolysis 3. To learn about the commercial preparation of aluminum Bell Ringer Exam 18 is today… Please have your Learning Log out for grading. You will need your periodic table, remote and a calculator. Battery Cell Redox Lab Day! Have your Composition Notebook out for Labs Make the entry in the Table of Contents Name Period # General Chemistry Lab Book 1 Page Content 1 Table of Contents 2 Measurements Lab 3-5 Separation of a Mixture 7-9 Percentage of Water 11-15 Flame Test Lab 17-19 Group IA & IIA Cations 21-24 Fe, Mn, Cr & Ni Cations Lab 25-29 Hg, Ag, Zn, Cu Cations Lab 31-35 Calcium Composition Lab 37-38 Redox Lab 39-41 Titration Lab 43-45 Battery Cell Redox Lab Bell Ringer You will be continuing your lab on Battery Cell Redox. BEFORE you can begin, your lab must be checked to ensure that it has the following parts: Questioning: Predicting: Procedure: (check for variables) Safety: Bell Ringer This is your final day for data collection. Be seated and ready for attendance before finishing your lab. Remember that your final sections should have the following parts: Data & Observations: Calculations & Results: Qualitative & Quantitative!!! Discussion of Results: Additional Questions: COMPLETE SENTENCES Bell Ringer Practice for the Final Day…No time to play. Be seated and ready for instructions. Bell Ringer Practice for the Final Day…No time to play. Be seated and ready for instructions. District Exam Pick up your remote from the CPS bag. Be sure that it is YOUR number. Begin testing immediately. You may use: Paper to show your work and a Calculator. No Cell Phones! Bell Ringer Day 1 of 4 for our Calorimeter Lab You will use a hand out to begin writing up our Lab Log entry. I. Procedures…detailed by simplified (should have prediction prior to starting) II. Safety-MSDS is a good resource III. Data/Observation Table ready for collection IN PEN…Partners are fine to this point Lab Day 2 of 4 Data Collection Before you can begin collecting data…you must have your lab book entry preapproved. I. Procedures-short and sweet but shouldn’t need the manual to know how to do the lab. WITH A Prediction! II. Safety section for chemicals and equipment we are using. MSDS is your BFF. III. Data/Observations (begin after approval) Lab Day 3 of 4 Final Day for Calorimeter Data Collection! Remember a full lab report includes: Intro, Procedures, Safety, Data & Observations, Calculations & Results (excel graphs etc), Discussion of Results, References in ACS and Additional Questions. You will be submitting all 8 sections to me on Tuesday after the break. Paper copy submission please… No 3rd Person! Individual work! Lab Day 4 of 4 Final Day for Calorimeter Data Collection! Remember a full lab report includes: Intro, Procedures, Safety, Data & Observations, Calculations & Results (excel graphs etc), Discussion of Results, References in ACS and Additional Questions. You will be submitting all 8 sections to me on Tuesday after the break. Paper copy submission please… No 3rd Person! Individual work! Bell Ringer Bell Ringer Finals Bell Ringer Pick up your remote, take out your calculator (no cell phones) & scratch paper. No personal periodic tables but the one in our test booklet or on the wall is fair game. Your grade is based on number correct so it is to your best interest to answer every question.