Report Sheet: Determination of Molecular Weight Through Freezing Point Depression Analysis Part A: Volume of Cyclohexane29.1 Mass of cyclohexane (d-0.7786 g/mL)22.6578 Freezing Point of cyclohexane 6.56 °C Part B: Molecular Weight of Naphthalene Mass of Sample 1 Moles of Sample 1 Mass of Sample 2 Moles of Sample 2 Moles m (mol/kg solvent) T,('C) Naphthalene 'IV TRIAL 1 5.67 - TRAIL 2 k, Cyclohexane CC/m) Part C: Unknown Number 15 Mass of Sample 2 o.190978 Mass of Sample 1 O.18086 8 Grams Unknown T,(C) TRIAL 1 5.85 TRAIL 2 TRIAL 2 (moles) Moles UnknownTRIAL 1 (g/mol) (g/mol)TRIAL 2. Molecular Weight Unknown TRIAL 1 AVERAGE MOLECULAR WEIGHT OF UNKNOWN

Report Sheet: Determination of Molecular Weight Through Freezing Point Depression Analysis Part A: Volume of Cyclohexane29.1 Mass of cyclohexane (d-0.7786 g/mL)22.6578 Freezing Point of cyclohexane 6.56 °C Part B: Molecular Weight of Naphthalene Mass of Sample 1 Moles of Sample 1 Mass of Sample 2 Moles of Sample 2 Moles m (mol/kg solvent) T,('C) Naphthalene 'IV TRIAL 1 5.67 - TRAIL 2 k, Cyclohexane CC/m) Part C: Unknown Number 15 Mass of Sample 2 o.190978 Mass of Sample 1 O.18086 8 Grams Unknown T,(C) TRIAL 1 5.85 TRAIL 2 TRIAL 2 (moles) Moles UnknownTRIAL 1 (g/mol) (g/mol)TRIAL 2. Molecular Weight Unknown TRIAL 1 AVERAGE MOLECULAR WEIGHT OF UNKNOWN

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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The particulate model of matter can be used to explain evaporation ( liquid to gas below the boiling point) by: a.) stating that particles in liquid phase have range of KE and the highest KE can escape b.) stating that particles in liquid phase have range of PE and the lowest PE can escape c.) stating that particles in liquid phase have range of PE and the highest PE can escape d.) stating that particles in liquid phase have range of KE and the lowest KE can escape
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6. When Mr. Calvo heated up the water, the sugar dissolved Name: Date: Class: Pages: 149 to 157 5. To make a solution, particles from one substance so that you cannot see them. into another substance A. dissolves B. drags C. rubs D. condenses A. slower B. faster C. without any change D. into salt 7. A begins and ends with the same kind of matter. A. chemical change B. physical change D. solute C. solvent 8. A begins with one kind of matter and ends with another. B. chemical change B. physical change C. solvent D. solute . when a substance goes through a chemical change, it forms a new substance that has different physical and chemical properties. Chemical changes are often caused by changes in temperature. Which of the following is an example of a chemical change caused by a change in temperature? А. burning wood in a fire melting ice cream С. В. freezing a popsicle boiling water D. 10.Iron becomes rust when it reacts with oxygen. Which of the following is another example o material…
Question 25 Choose the major organic product for the following reactions: 1) P-TaCI / pyridine HO, 0.03 M CH,CH20-Na* 35 °C In ELOH/DMSO 2)
EtO NaOEt, ELOH EtO,C- OEt a) b.) CI EtO HO ČI ÓEt ÓH d.) e)
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