E OSTATES OF MATTER Using heat of fusion or vaporization to find the heat needed to... Calculate the amount of heat needed to melt 82.6 g of solid methanol (CH,OH) and bring it to a temperature of -26.1 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 X

E OSTATES OF MATTER Using heat of fusion or vaporization to find the heat needed to... Calculate the amount of heat needed to melt 82.6 g of solid methanol (CH,OH) and bring it to a temperature of -26.1 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 X

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

Chapter17: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 128IP: Some nonelectrolyte solute (molar mass = 142 g/mol) was dissolved in 150. mL of a solvent (density =...

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s.com/alekscgi/x/sl.exe/lo_u-igNsikr7j8P3jH-vTqeviKFP6W0cqJcWJdIACROQwyw24GWHinCX72NRg1Xko5RqYtZo... ☆ 5.3 Enthalpies of... lecula... 18.3 Gibbs Free E... Predicting the reactants of a neutralization reaction W Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation. Be sure the equation you submit is balanced. (You can edit both sides of the equation to balance it, if you need to.) Note: you are writing the molecular, and not the net ionic equation. D-KNO,(ag)+H₂O(1) Explanation 18.3 Gibbs Free E... Check Allopatric(most common) Other place Speciation is happening because the two groups split and live in other E 4 6 X Do & 7 0-0 18.5 Gibbs Free E... Reading Schedule 3 © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility JP 0.5 U O do
☆ s.com/alekscgi/x/sl.exe/to_u-IgNsikr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHin3gzsTjpfxz_5lgeo_vsTp._ Q 5.3 Enthalpies of... 18.5 Gibbs Free E... Reading Schedule 19.6 Reduction ChatOPT stecula.18.3 Gibbs Free E... 18.3 Gibbs Free E... E 2 Calculating the pH of a weak base titrated with a strong acid An analytical chemist is titrating 98.4 mL of a 0.7000M solution of ammonia (NH,) with a 0.5500M solution of HNO,. The pK, of ammonia is 4.74. Calculate the pH of the base solution after the chemist has added 107.8 mL of the HNO, solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO, solution added. Round your answer to 2 decimal places. PH-0 W S Explanation 3 E D Check 16 $ 4 C X R F 3 % m сла V T G Ⓡ tv NTZA Ⓒ 6 B Y H & © 2023 McGraw Hit LLC. At Rights Reserved. Terms of Use vacy Center Accessibility 7 U N * 8 ( M 9 7 1 0 2. K W P Lara V ? P ala A 92 Aa 1 A A
www-awu.aleks.com/alekscgi/x/lsl.exe/10_u-IgNslkr7j8P3jH-lvTqeviKFP6W0cqJcWJdIACROQwyw24GWHinwgLxrTA3qJGX 18.5 Gibbs Free E... Reading Schedule 4 Solubility and... esc 18.3 Gibbs Free E... 5.3 Enthalpies of.... O KINETICS AND EQUILIBRIUM Calculating equilibrium composition from an equilibrium constant Zoom (2).pkg Suppose a 250. mL flask is filled with 1.2 mol of Cl₂ and 0.60 mol of HCl. The following reaction becomes possible: H₂(g) + Cl₂(g). 2HCl(g) The equilibrium constant K for this reaction is 0.409 at the temperature of the flask. Calculate the equilibrium molarity of H₂. Round your answer to two decimal places. M Explcnation Check 3 X $ 4 S > C % 5 (Q) tv I A 6 We 19.6 Reduction Po... Ya sc & C Ⓒ2022 McGraw Hill LLC. All Rights You 9
-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHinnFt 5.3 Enthalpies of... 18.5 Gibbs Free E... 18.3 Gibbs Free E... 21,108 M O ELECTROCHEMISTRY Ranking the strength of oxidizing and reducing agents using... species Use the information in the ALEKS Data tab to sort the following chemical species by reducing power. Ag(s) Ca'(s) Br (aq) Na(s) Explanation X Check reducing power DEC 5 choose one choose one choose one ✓ choose one S Reading Schedule tv CP 19.6 Reduction Ⓒ2022 McGraw H (A) MacBook Pro
Q awu.aleks.com/alekscgi/x/isl.exe/1o_u-IgNsikr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHIntrzjVfiaJ_cKvcyqWTUEIAKXtcoqhtE9... Gibbs Free E... Reading Schedule 19.6 Reduction Po... Y SOLUTION: The le... Math 115 W-S Fall.. 18.3 Gibbs Free E... 5.3 Enthalpies of... 5.3 Enthalpies of... 18.5 Gibbs Free E... 18.5 20,449 2 E W S ENTROPY AND FREE ENERGY Calculating dG from dH and dS A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 98.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free erfergy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under…
it View History Bb Content- X 18.3 Gibbs Free E... 108 BOOKMar RS Bb 93389825 X wu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHInnFtOh8 18.5 Gibbs Free E... oxidation: reduction: 5.3 Enthalpies of... O ELECTROCHEMISTRY Writing the half-reactions of a metal-nonmetal reaction Explanation Bb 93389821 X 8 Study this chemical reaction: 2Ca+O, → 2 Cao Then, write balanced half-reactions describing the oxidation and reduction that happen in this reaction. Check 5 ローロ B What is th X 19₁ X D 0 7 Bb 93737627 X 3 Reading Schedule tv C Childre 19.6 Reduction Po.... “7 C Ⓒ2022 McGraw Hi
w History Bookmarks Profiles Tab Window Help aleks.com/alekspl/x/sl.eve/tou-igskr7;8P3jH-TgeviKFPSWocqjcWJdIACROQwyw24GWHSU2y371320M2E-620M.. 13 intermolecule. 18.3 Gibbs Free E... 18.3 Gibbs Free E... 5.3 Enthalpies of... 18.5 Gibbs Free E... Reading Schedule S esc ! 1 Q A e Z Using heat of fusion or vaporization to find the heat needed to... Calculate the amount of heat needed to melt 139. g of ice (H₂O) and bring it to a temperature of 37.4 °C. Be sure your answer has a unit symbol and the correct number significant digits. 2 0 W S X Explanation # 3 E D Check $ 4 C 15 R F x % сла 5 V 3 T ♫ Ⓡ tv ^ 6 Y B & 7 G H U N * 8 J <= 1 M ( 9 K O ) 0 L D P {
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Chrome ... t email draft esc X E C 17.4 Solubility and 18.3 Gibbs Free E... 5.3 Enthalpies of.... Nancy Foldi x A ALEKS-La XC|Chegy.com www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNsikr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHInrM9gp1X_skbllM9wHNg_.6zrMKCucksw 18.5 Gibbs Free E. Reading Schedule 19.6 Reduction Po... OKINETICS AND EQUILIBRIUM Calculating equilibrium composition from an equilibrium constant Suppose a 250, ml flask is filled with 0.70 mol of NO₂, 0.60 mol of NO and 1.6 mol of CO₂. The following reaction becomes possible: NO₂(g) +CO(g) NO(g) + CO₂(g) The equilibrium constant K for this reaction is 0.443 at the temperature of the flask. Calculate the equilibrium molarity of NO₂. Round your answer to two decimal places. OM Explanation Zoom (2).pkg 1 Check X C E 3 4 G Search or type URL R tv 5 19.6 Reduction Po... SOLUTION: The le Math 115 W- 6 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use ☆ Oya 8
C www-awu.aleks.com/alekscgi/x/lsl.exe/10_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHInrCnyqVCaf_xSaZNy Solubility and... 18.5 Gibbs Free E... esc ||| 18.3 Gibbs Free E... OKINETICS AND EQUILIBRIUM Calculating equilibrium composition from an equilibrium constant M Explanation Suppose a 500. mL flask is filled with 1.4 mol of NO3 and 1.5 mol of NO₂. The following reaction becomes possible: NO₂(g) + NO(g) 2NO₂(g) The equilibrium constant K for this reaction is 3.89 at the temperature of the flask. Calculate the equilibrium molarity of NO₂. Round your answer to two decimal places. @ 2 5.3 Enthalpies of... Check W # 3 X E 10 54 $ S > R C % 5 e T Reading Schedule tv MacBook Pro ^ 6 & 19.6 Reduction Po... SOLUTI 7 Ⓒ2022 McGraw Hill LLC. All Rights Reser U * 00 8
A student determines the molar mass of acetone, , She found that the equilibrium temperature of a mixture of ice and water was 1.0C on her thermometer. When she added 11.1g of her sample to the mixture, the temperature, after through stirring, fell to -3.0C. She then poured off the solution through a screen into a beaker. The mass of the solution was 90.4g. a. what was the freezing point depression? b. what was the molarity of the acetone? c. how much aceton was in the decanted solution? d. how much water was in the decanted solution? e. how much acetone would there bein a solution containing 1kg of water and acetone at the same concentration as she has in herexperiment? f. what did she find to be the molar mass of aceton, assumingshe made the calculation properly?