(Q13) Select of all the following that reflect the standard state of the element: lodine: I2 (g) Lead: Pb2* (aq) Fluroine: F (aq) Chlorine: CI(g) Sulfur: Sg(s) (rhombic) V Carbon: C(s) (graphite) V Phosphorus: P(g) V Carbon: C(g) V Iron: Fe(s) V Hydrogen: H2 (g)

(Q13) Select of all the following that reflect the standard state of the element: lodine: I2 (g) Lead: Pb2* (aq) Fluroine: F (aq) Chlorine: CI(g) Sulfur: Sg(s) (rhombic) V Carbon: C(s) (graphite) V Phosphorus: P(g) V Carbon: C(g) V Iron: Fe(s) V Hydrogen: H2 (g)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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One day, a lady named Rose brings a gentleman named Jack into the ER with a bad case of hypothermia. Given that Jack has a body mass of 75.0 kg and a core temp of 25.0 degrees C, how much heat energy change must Jack experience to get back to a normal core temperature of 37.0 degrees C? +3.77 (106) Joules +1.69 (108) Joules +1.16 (107) Joules +3.00 (108) Joules +2.51 (107) Joules
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One of the methods used in the steel industry to obtain metallic iron is to react iron(III) oxide, Fe2O3(s), with carbon monoxide, CO(g), as shown in the balanced equation below: Fe2O3(s) + 3CO(g) → 3CO2(g) + 2Fe(s) Determine the enthalpy change of this reaction, given the following equations and their enthalpy changes. (1) CO(g) + _ 1 2 O2(g) → CO2(g) ΔH° = −283.0 kJ (2) 2Fe(s) + _ 3 2 O2(g) → Fe2O3(s) ΔH° = −824.2 kJ
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Find delta S for the formation CH2CL2 (g) from its elements on their standard states.
N2(g) + O2(g)< -----> 2 NO(g) H = +180.7 kJ 2 H2O(l) <-----> 2 H2(g) + O2(g) H = +571.7 kJ 4 NH3(g) + 5 O2(g) <-----> 4 NO(g) + 6 H2O(l) H = -1167.1 kJ Use Hess's law to calculate H for the reaction below. 2 NH3(g) <-----> N2(g) + 3 H2(g)
Part A Calculate AHxn for the following reaction: Use the following reactions and given AH values: Express your answer in kilojoules to three significant figures. ► View Available Hint(s) ΠΫΠΙ ΑΣΦ AHrxn= Provide Feedback ? kJ 2Al(s) + Al2O3(s) + 3CO(g) → 2Al(s) + 3CO₂(g) CO(g) + O₂(g) → Al₂O3(s), ΔΗ O₂(g) → CO₂(g), AH = -1675.7 kJ -282.7 kJ Next >
and 2 Enthalpy #1.30 enoindice pled TT 2010 2D49.bs 22) When 1 mole of Fe2O3(s) reacts with H₂(g) to form Fe(s) and H2O(g) according to the following equation, 98.8 kJ of energy are absorbed. (6 Fe2O3(s) + 3 H2(g) → 2 Fe(s) + 3 H₂O(g) (pp) (20/d4 (pm) $40 D Reaclanis 13:48 SH Products endothermic, A endothermic, B (2) exothermic, A exothermic, B nad W (21 Enthalpy MOMS. Reactants Products (A) (B) Is the reaction endothermic or exothermic, and which of the enthalpy diagrams above represents grow olor and to noin (01 this reaction? SH GH TH A HOMH X HILD 08.10 Page 6 of 8
Pls help ASAP. Pls show all of your work and give ansewrs in significant figures. Pls write neatly and explain each step.
(Q5) Consider an endothermic reaction that takes place in 553 mL of solution. If the reaction requires 4,380 J of energy and the initial temperature of the solution is 26.2, what will the final solution temperature be? (3 sf) The density of solution is 1.00 g/mL and the specific heat of the solution is the same as that of water.