a) What assumptions were you making about the total volume of your standard solutions? b) What was the limiting piece of equipment for your volume measurements? c) How many significant figures should your concentration data have?

a) What assumptions were you making about the total volume of your standard solutions? b) What was the limiting piece of equipment for your volume measurements? c) How many significant figures should your concentration data have?

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter9: Column Chromatography: Fluorenone, Cholesteryl Acetate, Acetylferrocene, And Plant Pigments

Section: Chapter Questions

Problem 5Q

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

CONCEPT OVERVIEW
A solution is a homogeneous mixture of two or more substances. Simple solutions consist of one solvent
and one or more solutes. The solvent is the major liquid component of the mixture in solutions that
contain one or more liquids. The most common solutions are aqueous solutions, in which water is the
solvent. Many chemical reactions are carried out with reactants dissolved in water to form solutions.
Chemists need units with which to express concentration of the solutions. Although other units, such as
mass percent and volume percent, are common, the most frequently used unit for aqueous solutions is
molarity, which is used here. Molarity

Comment on the precision of your data from the prelab. Specifically:
a) What assumptions were you making about the total volume of your standard solutions?
b) What was the limiting piece of equipment for your volume measurements?
c) How many significant figures should your concentration data have?

Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.

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