HSS Website X urse Home 5158&HEPID=6b9f9 b2f... 2 010 8 of 21 Review I Constants I Periodic Table actions. Part A 2AuCls (aq) 3Ni(s)3NIC!2 (aq) + 2Au(s) Express your answer as a chemical equation. Identify all of the phases in your answer. ΑΣφ ? Submit Request Answer Part B 2KI (aq) Br2 (1)-2KBr(aq) + I2 (s) Express your answer as a chemical equation. Identify all of the phases in your answer. ΑΣ P Pearson 019 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy PolicyI Permissions Contact Us II F8 F5 F6 F7 F9 F10 F11 F12 & ) 6 7 8 9 0 delete Y U O P II +

HSS Website X urse Home 5158&HEPID=6b9f9 b2f... 2 010 8 of 21 Review I Constants I Periodic Table actions. Part A 2AuCls (aq) 3Ni(s)3NIC!2 (aq) + 2Au(s) Express your answer as a chemical equation. Identify all of the phases in your answer. ΑΣφ ? Submit Request Answer Part B 2KI (aq) Br2 (1)-2KBr(aq) + I2 (s) Express your answer as a chemical equation. Identify all of the phases in your answer. ΑΣ P Pearson 019 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy PolicyI Permissions Contact Us II F8 F5 F6 F7 F9 F10 F11 F12 & ) 6 7 8 9 0 delete Y U O P II +

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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(c) The data set below represents the surface tension data for aqueous solutions of 3- methylbutanoic acid [(CH3)2CHCH₂COOH] at 25°C. [C] [mol.dm³] 0 Y[mN.m'] 72.7 0.009 64.6 0.026 59.0 0.065 51.3 0.135 47.0 (i) Calculate the surface excess of 3-methylbutanoic acid (in mol.m2) and (ii) Hence estimate the molecular cross sectional area (in nm²) for this surface active molecule. (iii) Compare your estimate with the molecular cross sectional area one might expect for n-butanoic acid and account for the difference, if any, between the two surface active molecules.
15 16 17 18 19 20 21 22 23 24 25 26 27 A certain liquid X has a normal freezing point of 4.80 °C and a freezing point depression constant K,=6.94 °C-kg-mol . Calculate the freezing point of a !! solution made of 175.g of iron(III) nitrate (Fe(NO,),) dissolved in 850. g of X. db Round your answer to 3 significant digits. Submit Assignment Continue MacBook Air F12 FII F9 F10 FB 000 F6 F7 80 F5 esc F1 F2 * & $ %
A test tube contains 2.63x10-4 m3 of liquid carbon tetrachloride (β = 1240x10-6 (C°)-1) at a temperature of 80.0°C. The test tube and the carbon tetrachloride are cooled to a temperature of -10.0°C, which is above the freezing point of carbon tetrachloride. Find the volume of carbon tetrachloride in the test tube at -10.0°C.
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Pre-lab Assignment 1.) Note from the 'Introduction' that the freezing-point-depression constant, Kfp, for any solvent can be calculated as long as the heat of fusion, AHfus, and freezing point of the solvent is known. Calculate the freezing-point-depression constant (in SI units) for carbon tetrachloride, CC14, given that its heat of fusion is 2.5 kJ/mol and its freezing point is 250.3 K. M solvent & (TF Solvet) AIFUD - molor Mod 1=0,0821 LATM/ molk ~14=153.82glangs Кы = latm (153.82 $7) (0.0821 (ar) (250.5x)² 2 2.5 123/M/G\
The freezing point of acetic acid is typically 16.6 \deg C. If a sample of 95% w/w acetic acid and 5% w/w water is cooled, at what temperature in degrees Celsius would it freeze? The density of acetic acid is 1.05 g/mL.. Keep your answer to 3 significant figures. (Kfp-3.90 \deg C/m for acetic acid). . .
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Complete and balance the following equations. Na2O2 (s) + H₂O(1) → Express your answer as a chemical equation including phases. ΑΣΦ ? A chemical reaction does not occur for this question.