Percent Composition of Compounds **As we have seen, the formula of a compound tells us the numbers of atoms of each element in a unit of the compound. ** However, suppose we needed to verify the purity of a compound for use in a laboratory experiment. We could calculate …
Read More »Calculating the pH of Weak Acid and Base Solutions
– In this subject, we will discuss Calculating the pH of Weak Acid and Base Solutions Total and partial ionization – When an acid or base is dissolved in water, it will dissociate, or ionize According to the equations: – The amount of ionization is dependent on the strength of …
Read More »Analytical Chemistry book by Gary D.Christian – Free Download
– In this subject, we will discuss the Free Download Analytical Chemistry book (7th edition) by Gary D.Christian Introduction to Analytical Chemistry book What is Analytical chemistry? – Analytical chemistry is concerned with the chemical characterization of matter, both qualitative and quantitative. – It is important in nearly every aspect …
Read More »pH Scale: Definition, formula, Notes, Solved problems
– In this subject, we will discuss the pH Scale: Definition, formula, Notes, Solved problems pH Scale – The concentration of H+ or OH− in aqueous solution can vary over extremely wide ranges, from 1 M or greater to 10−14 M or less. – To construct a plot of H+ concentration against some variable …
Read More »Acid-Base Equilibrium in Water
– In this subject, we will discuss Acid-Base Equilibrium in Water. Acid-Base Equilibrium in Water – When an acid or base is dissolved in water, it will dissociate, or ionize According to the equations: – The amount of ionization is dependent on the strength of the acid or the base. …
Read More »Acid-Base Theories: Arrhenius, Lewis, and Bronsted-Lowry Theory
– In this subject, we will discuss Acid-Base Theories: Arrhenius, Lewis, and Bronsted-Lowry Theory Acid-base Theories – Several acid–base theories have been proposed to explain or classify acidic and basic properties of substances. – You are probably most familiar with the Arrhenius theory, which applies only to water. – Other …
Read More »Weighing Equipment and Manipulations
– In this subject, we will discuss The Equipment and Manipulations Associated with weighing. Weighing Equipment and Manipulations – The mass of many solids changes with humidity because they tend to absorb weighable amounts of moisture. – This effect is especially pronounced when a large surface area is exposed, as …
Read More »Analytical Balance: Definition, Principle, Types, Examples
– In this subject, we will discuss the Analytical Balance: Definition, Principle, Types, Examples – In most analyses, an analytical balance must be used to measure masses with high accuracy. – Less accurate laboratory balances are also used for mass measurements when the demands for reliability are not critical. What …
Read More »Selecting and handling reagents and other chemicals
– In this subject, we will discuss Selecting and handling reagents and other chemicals in an analytical Chemistry laboratory – The purity of reagents has an important bearing on the accuracy attained in any analysis. – It is, therefore, essential that the quality of a reagent be consistent with its …
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