5.Measures to observe when measuring viscous liquids include the following, with exception of a.Use of silicone treated glassware for smaller volume of liquids b.Pouring from bottle that is not completely filled c.When pouring, do not allow the liquid to run down the inside surface of the graduates d.Drainage time is longer 6.Most accurate balance to use for pharmaceutical analysis a.Household scale b.Top loading balance c.Analytical balance Triple beam balance

5.Measures to observe when measuring viscous liquids include the following, with exception of a.Use of silicone treated glassware for smaller volume of liquids b.Pouring from bottle that is not completely filled c.When pouring, do not allow the liquid to run down the inside surface of the graduates d.Drainage time is longer 6.Most accurate balance to use for pharmaceutical analysis a.Household scale b.Top loading balance c.Analytical balance Triple beam balance

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter5: Distillation

Section: Chapter Questions

Problem 13Q

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Source of error in viscosity for glycerin liquid.
An Ostwald viscometer was used to determine the time of flow of syrup at 20 °C. Data for Water:Time of flow: 0.23 secondsDensity at 20 °C: 0.998 g/cm³Viscosity: 0.0101 poiseData for Syrup:Time of flow: 1.42 secondsDensity at 20 °C: 1.153 g/cm³ Input all numerical answers to the 3rd decimal place 1. What is the viscosity of syrup? * 2. From the computed viscosity of syrup, what will be its fluidity? 3. What is the kinematic viscosity of water? 4. From the computed viscosity of syrup, what will be its kinematic viscosity? 5. What is the fluidity of water?
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An ostwald viscometer was used to determine the time of flow of syrup at 20°C Data of water: Time of flow: 0.23 sec Density at 20°C: 0.998 g/cm3 Viscosity: 0.0101 poise Data of Syrup: Time of flow: 1.42 sec Density at 20°C: 1.153 g/cm3 1. What is the fluidity of water? 2. What is the Viscosity of syrup? 3. From the computed Viscosity of syrup, what will be its kinematic Viscosity? Show complete solution.
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