Report Measurements and Density notd QUESTIONS Name Section etion of the 1. From your data, calculate the volume occupied by 100 g of the following: a. salt solution volume- 0 562 n b. metal bar 1.16891ML Volume 1-1SS 2. From your answers to question 1 determine whether the metal bar or the salt solution occupies the larger volume. Explain your answer in the context of the densities of solids and liquids in general. AUS S Chim unk 3. Define the terms precision and accuracy in such a way as to distinguish between them. u betqoo d dtov Bet ch ties. Wher mixures Lot of sweetener The ments. Mixtures such composition, prtpert called heter og vary. For sefe 4. Are your results for the metal bar more precise or more accurate? Explain. Are 5. From your data for the salt solution, evaluate the two methods in terms of their precision. Which method should lead to greater precision? Which method actually is more precise? Explain. Each d ion of of ofh

Report Measurements and Density notd QUESTIONS Name Section etion of the 1. From your data, calculate the volume occupied by 100 g of the following: a. salt solution volume- 0 562 n b. metal bar 1.16891ML Volume 1-1SS 2. From your answers to question 1 determine whether the metal bar or the salt solution occupies the larger volume. Explain your answer in the context of the densities of solids and liquids in general. AUS S Chim unk 3. Define the terms precision and accuracy in such a way as to distinguish between them. u betqoo d dtov Bet ch ties. Wher mixures Lot of sweetener The ments. Mixtures such composition, prtpert called heter og vary. For sefe 4. Are your results for the metal bar more precise or more accurate? Explain. Are 5. From your data for the salt solution, evaluate the two methods in terms of their precision. Which method should lead to greater precision? Which method actually is more precise? Explain. Each d ion of of ofh

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter7: Equilibria In Multiple-component Systems

Section: Chapter Questions

Problem 7.55E: Determine how ideal the following solutions are by calculating the mole fraction of solute in each...

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Determine how ideal the following solutions are by calculating the mole fraction of solute in each solution, and comparing that to the expected mole fractions. All data are for 25.0C. a14.09 weight percent of I2 in C6H6, MP of I2 is 112.9C sublimes, and fusH=15.27kJ/mol b2.72 weight percent of I2 in C6H12, MP of I2 is 112.9C sublimes, and fusH=15.27kJ/mol c20.57 weight percent of para-dichlorobenzene, C6H4Cl2, in hexane, MP of C6H4Cl2 is 52.7C and fusH=17.15kJ/mol
A water solution of sodium hypochlorite (NaOCl) is used as laundry bleach. The concentration of sodium hypochlorite is 0.75 m. Express this concentration as a mole fraction.
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Please indicate true (T) or false (F) as appropriate: Justify I) The vapor pressure of a solvent is reduced by the presence of a non-volatile solute II) In an ideal solution, the vapor pressure is increased by the presence of a solute Volatile. III) Sea water freezes at a lower temperature than sugar water. IV) In the laboratory, chemists use this effect to judge the purity of a component solid: if impurities are present, the freezing point of the compound is lower than the accepted value. A) TFTF B) TTFT C) FTFF D) TTTT
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A equal mixture of hexane and heptane behaves as an ideal solution. At 25 ◦C , the equilibrium vaporpressure is 0.219 atm for hexane and 0.075 for heptane. What is the equilibrium vapor pressure for atwo-to-one mixture of heptane to hexane?
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Ascorbic acid (1vitamin C, C6H8O6) is a water-soluble vitamin.A solution containing 80.5 g of ascorbic acid dissolvedin 210 g of water has a density of 1.22 g/mL at 55 °C. Calculate(a) the mass percentage, (b) the mole fraction, (c) themolality, (d) the molarity of ascorbic acid in this solution.
279.28 mL of 1.22 M organic salt was mixed with 168.14 mL of Ethanol (d= 0.789 g/mL, MW 46.07g/mole). Pure ethanol has a vapor pressure of 0.059 atm what will be the vapor pressure of the solution?
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