lab#9worksheetinclass

Anna was asked to identify and explain if the equation CO2 (g) → CO2 (I) was an endothermic or exothermic reaction. However she got it wrong. What is her error and what should the answer have been? Anna's statement: The equation is an endothermic reaction because the energy is released from gaseous CO2 to the surroundings to become liquidCO2 causing the molecules to speed up. Format В I U B ... >

Q#1 As you increase the temperature of a Gas, what happens to the MEP and the average collision time for that gas particles? [Show your calculations]

Please answer the following question:

2NO(g) + Cl2(g) = NOCl2(g) NOCl2 + NO(g) = 2NOCl(g) If this mechanism is correct, what can be concluded about the relative speeds of these two stages?

ORT SHEET Heat of Neutralization EXPERIMENT elemsboomfchg lom 12 A. Heat Capacity of Calorimeter 1. Temp. of calorimeter and water before mixing 2. Temp. of warm water °C 22.0 39,0 30.3 3. Maximum temp. determined from your curve °C 4. Heat lost by warm water (temp decrease x °C 50.0 g x 4.184 J/K-g) = 02), 5. Heat gained by cooler water (temp. increase x 50.0 g x 4.184 J/K-g) = 30,3 22.0)x 13626J s0.0gmpi S0.0gy 6. Heat gained by the calorimeter [(4) – (5)] = 7. Heat capacity of calorimeter: heat gained by the calorimeter temperature increase J/K 3. Heat of Neutralization of HCl-NaOH 22.2 22.2. °C . Temp. of calorimeter and NaOH Temp. of HCI AT determined from your curve after adding HC1 °C to the NaOH Heat gained by solution (temperature increase x ON 100 g x 4.184 J/K-g) = 9977.8J %3D Heat gained by calorimeter (temperature increase x heat capacity of calorimeter) = J %3D Total joules released by reaction [(3) + (4)] = Tight O 2018 Pearson Education, Inc.

Which of the following best define systems thinking in chemistry? Systems thinking is learning about chemistry within real-word contexts. Systems thinking focuses on the interdependence between chemistry components, as well as the influence of chemistry on other systems. Systems thinking is a way of thinking about chemistry systematically.

What is the name of the process shown below and how does it work (be specific about what happens to the molecules involved)? Which class of biomolecules (protein, lipid, carbohydrate, nucleic acid) are involved in this particular reaction example? List at least 2 types of functions this class of macromolecules might be involved in biologically. CH₂OH CH₂OH CH2OH CH₂OH НО ОН он ОН н ОН OH ОН Н + H2O → HO ОН ОН н OH + НО ОН ОН Н ОН

Using the following data O2 (g) SO₂ (g) SO3 (g) Af He/kJ mol-1 0 -296.8 -395.7 AfGe/kJ mol-1 0 -300.2 -371.1 5/JK-1 mol-1 205.1 248.2 256.8 ACO/JK-¹ mol-1 29.4 39.9 50.7 In the following reaction SO₂(g) + O₂(g) → SO3(g) Calculate the enthalpy of reaction, the entropy of reaction, and the Gibbs free energy of the reaction at P=1 atm and T-800 K.

1. Fill in the boxes below with the correct reagent, reactant or product (5 (а) OH (b) 1. (CH),СHMgBr 2. H,0 ÓH (c) 1. L¡AIH, 2. НО (d) CH;OH H,SO4 (e) 1. 2 (CH3),CHMgBr, 2. H,0 ÓH (f) 1. LIAIH, 2. H,0 HO,

4. Make the following conversions. a. 1977J cal b. 744.6 cal → J

In your own words, describe why metals are such good conductors of electricity. Be sure to include the definition of metallic bond in your answer. Answer in 2 to 3 complete sentences. I !!! H Normal A Enter your answer here BIUS √x 20 Tx

Suppose that the gas-phase reaction 2 NO(g) + O₂(g) →2 NO₂ (g) were carried out in a constant- volume container at constant temperature.

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Chrome File Edit View History Bookmarks People Tab Window Help * 30% (4) Sat 2:00 PM Q O E 0 Chem101 O General Chemistry I (LAB SC) x i app.101edu.co Apps M Gmail O YouTube Maps Translate 3 https://www.carth.. Google Chrome isn't your default browser Set as default Question 7 of 8 Submit Using the equations N2 (g) + O2 (g) → 2 NO (g) AH° = 180.6 kJ/mol N2 (g) + 3 H2 (g) → 2 NH3 (g) AH° = -91.8 kJ/mol 2 H2 (g) + O2 (g) → 2 H2O (g) AH° = -483.7 kJ/mol kJ/mol Determine the enthalpy for the reaction 4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g). 1. 3 INFOR 4 6 Coings t C The MC Uhase Stan 8 9 +/- x 100 + 10.062 122 24 tv MacBook Air 888 DII F4 F5 F7 F9 12 %23 24 & * 2 4 6 8 %3D delete Q W E R Y A S D F G H J L return > C V

I really need help with this I’m really confused!!!

74 CHu + 2 Oze) CO2ig) + 2 H2O1n COue) +2 H;0n CHe) + 2 Oze) 2 C,H180 + 25 Ozug) 16 CO) + 18 H;Og 2 CH,OH, + 3 0ze) → 2C0u9+4H;0µ Which of the following is an endothermic reaction? * 2 C3H18(1) + 25 O218) → 16 CO218) + 18 H2O(g) 2 CH3OH) + 3 O2«) - 2 CO2e) + 4 H,O CO2ne) + 2 H2O) CHẠE) + 2 O2ie) CH4(g) + 2 O28) CO26) + 2 H2O)

e Schoology 8 Calendar | Schoology -> A bcps.schoology.com/common-assessment-delivery/start/3334253476?action=Donresume&submissionld-492882996 BCPS Links 9 Schoology 9 Schoology Which line on Graph 2 accurately shows the relationship between distance and the amount of potential energy stored in this system? Graph 2 A В DISTANCE BETWEEN MAGNETS WITH LIKE POLES FACING O Line A O Line B O Neither line A nor Line B is correct 2 4 7 8 10 11 Next » Sign out POTENTIAL ENERGY

A student working in lab is reacting calcium oxide with water by dropping lumps of calcium oxide into the distilled water. CaO (s) + H2O (ℓ) → Ca(OH)2 (aq) Which actions or changes can the student make to increase the number of effective collisions between CaO and H2O? [Specify all that are correct.] Group of answer choices - Use a larger beaker. - Add heat. - Decrease the amount of water. - Grind up the lumps of calcium oxide. - Use a catalyst.