LABORATORY TECHNIQUES IN ORGANIC CHEMIS
4th Edition
ISBN: 2819260096009
Author: Mohrig
Publisher: MPS PUB
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Chapter 9, Problem 2Q
Interpretation Introduction
Interpretation:
The advantages of the fluted filter paper in the gravity filtration should be determined.
Concept introduction:
Filtration is a physical process that is used to separate solid matter from a liquid by adding a filter medium through which only the liquid can pass. Gravity filtration is one of the methods of filtration of impurities from solutions by the use of gravity to pull liquid through a filter.
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1. A 25-mL specific gravity bottle was found to weigh 46.05 g when filled with water, and 52.93 g when filled with the ophthalmic solution. If the empty specific gravity bottle weighs 21.04 g, what is the specific gravity of the ophthalmic solution?
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Filtration of samples A, B, and C show no residue left. After letting them dry in different beakers, SAmple A remains no residues. Sample B shows crystal leftovers, and sample C show brown film on the beaker walls. This means that:
a. Two or more samples are heterogenous
b. Two or more samples are homogenous
c. all sample have 2 or more phases
d. all samples are pure
Chapter 9 Solutions
LABORATORY TECHNIQUES IN ORGANIC CHEMIS
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