Cl₂ heat t (1) (2) (3) Based on your results for the radical chlorination experiment, predict which products would be most and least abundant in the product mixture. Briefly justify your answer. CI

6. Given that the AHf for CaO, H3PO4, Ca3(PO4)2 and H2O, are, respectively, -635, -1267, -4126, and - 286 kJ/mole, (a) calculate the AH in kJ for the reaction: 3CaO + 2H3PO4 → Ca3(PO4)2 + 3H2O (b) calculate how much heat is released or absorbed when 15g of CaO reacts with excess phosphoric acid

Use table to calculate Delta H in kJ for the synthesis of hydrazine from ammonia 2NH3 (g) + Cl2 (g) ——> N2H4 (g) + 2HCl (g)

Consider the table. Metal Tm (K) AĦfus (kJ/mol) |Tp (K) AH vap (kJ/mol) Li 454 2.99 1615 134.7 Na 371 2.60 1156 89.6 K 336 2.33 1033 77.1 Rb 312 2.34 956 69 Cs 302 2.10 942 66 Using the data, calculate ASfus and ASvap for K. AS vap J 77.51 K-mol Incorrect J AS fus = 7.0080 %3D K-mol

Please don't provide handwritten solution ....

2. Use the AH information provided to calculate AHn° for the following. SHOW YOUR WORK!! SO,CL.(g) + 2 Ho0(1) → 2 HCI(g) + H,SO.(1) AHrxn° = ? AH{(kJ/mol) SO,Cl.(g) -364 H,O(1) -286 HCI(g) -92 H,SO.(1) -814 a. -256 kJ b. +161 kJ C. -62 kJ d. +800 kJ e. -422 kJ

a) Using the balanced equation and the data in the table below, calculate the theoretical enthalpy of combustion. Note: you will need to include the enthalpy of vaporisation for the liquid components which are also given. CH3OH() +1.502(g) → CO2(g) + 2H2O (1) Average Bond Enthalpies (kJ mol‍¹) C-H C-C C-O O=O C=O O-H Enthalpy of Vaporisation (kJ mol-¹) Methanol Water 412 348 358 496 743 463 35 41

1. Consider the BALANCED gas-phase reaction: Note that the full Lewis dot structures are NOT given, only the bond multiplicities. H C=O + 2 H-H CEO 1,079 436 H-H H-C-O-H C-H 414 C-O 351 O-H 460 H Estimate AH (in kJ) for this reaction using the following bond enthalpy data (all bond enthalpies in the above table are in kJ/mol).

A stude. right). as two experiments with a constant-volume "bomb" calorimeter containing 1100. g of water (see sketch at thermometer stirrer First, a 7.500 g tablet of benzoic acid (C,H,CO,H) is put into the "bomb" and burned completely in an excess of water oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed insulation to rise from 17.00 °C to 57.08 °C over a time of 15.0 minutes. Next, 4.440 g of ethane (C,H,) are put into the "bomb" and similarly completely burned in an excess of oxygen. This olo time the temperature of the water rises from 17.00 °C to 62.17 °C. chemical reaction "bomb" Ar Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: A "bomb" calorimeter. 20,H, (g) + 70,(g) 4Co,g) + 6H,0 () Be sure any of your answers that are calculated from measured data are rounded to the correct number of significant digits. Note for…

In the following and last section, please answer in form of a list or in sentences, or by relating physical quantities in the proper way (if that is asked, for)   1). State in brief sentences how two isotopes of an element differ from one another, and how they are the same (list at least three, extra credit for more):   2) In thermodynamics, which physical properties, or which properties of a gas that we are considering, might change (list at least three)   3) A contained gas might be described by its pressure p, temperature T, and number density n.  How are these related?  Describe in words or in equations whether the pressure is proportional or inversely proportional to temperature and density.  In other words, in an enclosed (ideal) gas, how does pressure change with increased temperature or density.   4) Name three ways (mechanisms) by which heat can be transferred from one object (or part of a physical system) to another