Part Cnd....pdfΔΗ = - - 123 kJ; ASn ==Express your answer as an integer.AGixn=SubmitPart D| ΑΣΦRequest AnswerAH-123 kJ; ASixn == 244 J/K; T = 615 KExpress your answer as an integer.244 J/K; T = 290 K15. ΑΣΦ 5 →P PearsonP IMG 5023 (1).pdfMacBook Air?on Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |kJReview I Conspr 23 2032 tes....mwx

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ΔΗ, Π = − 123 kJ; ΔSx = – 244 J/K;T = 290 K == Express your answer as an integer. AGixn = Submit Part D 15. ΑΣΦ Request Answer ΔΗ – 123 kJ; ΔSix Express your answer as an integer. IVE ΑΣΦ 195 -- = ~ 244 J/K; Τ = 615 Κ IMG_5023 (1).pdf -- 3 → ? ? kJ P Pearson tion Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | spr 23 2032 tes....mwx

ΔΗ, Π = − 123 kJ; ΔSx = – 244 J/K;T = 290 K == Express your answer as an integer. AGixn = Submit Part D 15. ΑΣΦ Request Answer ΔΗ – 123 kJ; ΔSix Express your answer as an integer. IVE ΑΣΦ 195 -- = ~ 244 J/K; Τ = 615 Κ IMG_5023 (1).pdf -- 3 → ? ? kJ P Pearson tion Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | spr 23 2032 tes....mwx

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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Calculate the heat change (AH°xn) for the slow reaction of zinc with water Zn (s) +2H,0(1) Zn²* (aq)+20H¯ (aq) +H2(g) using data from the following reactions and applying Hess's law. н' (ag) +ОН (ад) — н,о(1) AH - 56.0 kJ 'rxn1 Zn (s) → Zn²+, (аq) AH - 153.9 kJ 'rxn2 H, (g) → H* (aq) AH 0.0 kJ rxn3
Calculate the standard enthalpy of formation for diamond, given that Reaction C(graphite) + O₂(g) CO₂ (g) C(diamond) + O₂(g) → CO₂ (g) kJ mol -> x10 X (₁ Ś AHO Be sure your answer has the correct number of significant digits. kJ mol -393.4 -395.5
In a generic chemical reaction involving reactants A and B and products C and D, aA+bB→cC+dD, the standard enthalpy ΔH∘rxn of the reaction is given by ΔH∘rxn=cΔH∘f(C)+dΔH∘f(D) −aΔH∘f(A)−bΔH∘f(B) Notice that the stoichiometric coefficients, a, b, c, d, are an important part of this equation. This formula is often generalized as follows, where the first sum on the right-hand side of the equation is a sum over the products and the second sum is over the reactants: ΔH∘rxn=∑productsnΔH∘f−∑reactantsmΔH∘f where m and n represent the appropriate stoichiometric coefficients for each substance. What is ΔH∘rxnΔHrxn∘ for the following chemical reaction? CO(g)+NH3(g)→HCN(g)+H2O(g) You can use the following table of standard heats of formation (ΔH∘f)(ΔHf∘) to calculate the enthalpy of the given reaction. Element/ Compound Standard Heat of Formation (kJ/mol) Element/ Compound Standard Heat of Formation (kJ/mol) H(g) 218218 N(g) 473473 H2(g) 00 O2(g) 00 NH3(g) −45.90 O(g) 249 CO(g)…
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3. Heats of reaction can also be calculated using heats of formation and the relationship - AHrxn = ΣnAHƒ.prod — ΣmAHƒ.reac Substance HCl(aq) MgCl2(aq) MgO(s) H₂O(/) H.(kJ/mol) -167.2 -796.8 -601.2 -285.8 0 a. Standard State Elements Calculate the theoretical AH° values for the following reaction Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) MgO(s) + 2HCl(aq) → MgCl2(aq) + H2O(l) Mg(s) + O2(g) → MgO(s)
W(g) + X(g) ⟶ WX(g) ΔH = +40 kJ does heat flow into the sytem or out of the system or can't we tell?
X du.co Ce... 3 O E Aktiv Chemistry Metal What is the identity of a 100.0 g sample of metal that, upon absorbing 4680 J of heat, increases in temperature by 52.0 °C? Aluminum Copper Iron Magnesium Silver Tin Titanium $ R F5 Specific Heat Capacity J/(g-°C) 0.90 % 5 x + F6 T 0.38 0.45 1.00 0.23 0.32 0.52 F7 Y H F8 & Question 4 of 12 7 F9 * 8 F10 K ( 9 F11 O A) Mg B) Al C) Ti D) Fe ) F12 P PrtScr + Insert Hô Delete Backspace 1 PgUp
-1 -1 A 30.0 g sample of polyisoprene, which has a specific heat capacity of 1.880 J.g¹ºC, is dropped into an insulated container containing 250.0 g of water at 30.0 °C and a constant pressure of 1 atm. The initial temperature of the polyisoprene is 87.8 °C. Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has 3 significant digits. [°C G
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Please help with D & E
A thermodynamic study of DyCl; determined its standard enthalpy of formation from the following information (1) DyCl3(s) → DyCl3(aq, in 4.0 M HCI) (2) Dy (s) + 3нсі(аq, 4.0 M) — DyClз(аq, in 4.0 M нсІ) +н, (9) дня — — 180.06 kJ /mol дня — —699.43 k]/mol дне 3 — 158.31 k]/mol = - (3) H, (g) +Cl2(g) → HCI(aq, 4.0 M) Determine AH? (DyCl3, s) from these data.