How Soap perform cleansing action?
Soaps and detergents perform the cleaning action because the polar parts of their molecules are water soluble due to hydrogen-bonding and non-polar parts remain outside water.
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What are Average Atomic Masses?
Many elements exist as a mixture of their isotopes. The atomic masses of such elements depend upon the number of their isotopes and their natural abundances. This is why their atomic masses are in fraction. This can be explained through following example, EXAMPLE: A sample of neon is found to consist of 20Ne, 21Ne and…
What is Molecular Ion | Polyatomic Ions Definition
“When a molecule loss or gain one or more electrons, is called Molecular Ion or Polyatomic ion.” Examples of Polyatomic ions: CH4+, CO+, N2+ etc. Formation of Molecular Ion: Cationic molecular ions are more abundant than anionic Molecular ions. These ions can be generated by passing high energy electron beam or alpha particle…
Why H2O is liquid while H2S or H2Se are gases?
When we consider the hydrides of group VA, VIA, VIIA then NH3, HF and H2O show maximum boiling points in the respective series. The reason is the enhanced electronegative character of N, O and F. That is why, water is liquid at room temperature, but H2S and H2Se are gases. Comparatively high boiling points of…
How to Use the Stock System in Chemistry?
The stock system in chemistry is used for naming ionic compounds. There are some metals, which actually have more than one possible oxidation state. The stock system let us know which version of that metal ion we are considering. For example, copper can be either from a Cu+1 or Cu+2. Similarly, iron can form Fe+2…
What Can You Do With An Associates Degree In Chemistry?
The associate degree (AD) in Chemistry, equivalent to the European level 5, is a two-year higher professional education between the four-year MBO (level 4) and the four-year HBO bachelor (level 6). Many people think a four-year bachelor’s degree is far too long, especially if you want to do it part-time, you are vulnerable, because work,…
What Analytical Chemistry?
Analytical Chemistry is a branch of chemistry, which deals with the identification and quantification of chemical substances. It plays a vital role in almost all chemical sub-disciplines and is often the subject of current public discussions, for example, in environmental analysis. Types of Analytical Chemistry There are three main types of analytical Chemistry analysis: The…
