In chemistry, concentration refers to the amount of a substance in a defined space. Another definition is that concentration is the ratio ofsolutein a solution to eithersolventor totalsolution. Concentration is usually expressed in terms ofmassper unitvolume. However, the solute concentration may al...
Economics does not naturally lend itself to scientifichypothesis testingas does physics. In the field of epistemology, scientists can learn through logical thought experiments, also called deduction, or through empirical observation and testing, also called positivism. Geometry is a logically deductive sci...
What does 10% (w/v) NaCl mean? If some table salt, NaCl, gets wet, is it now a hydrate? Explain your answer. Imagine you are boiling a solution of table salt. What happens to the solution as the salt boils? Explain what would happen to the color of a dilute solution containing Fe...
What does it mean to mix something? To mix something means to combine two or more substances or elements so that they become integrated and form a uniform or harmonious whole. 11 How do mixtures differ from compounds? Mixtures consist of different substances physically combined, which can be se...
What is the purpose of using a strong acid like sulphuric acid in fluorescence spectroscopy? What do we mean by the equivalence point in a titration? Why does chromatography work? The color change of the phenolphthalein, the indicator, at an end point can be explained in terms of which of ...
(chemistry) That does not ionize completely into anions and cations in a solution. A weak acid; A weak base Weak (physics) One of the four fundamental forces associated with nuclear decay. Weak (slang) Bad or uncool. This place is weak. Weak Having a narrow range of logical consequences;...
In addition to dilution, here are more pro tips for using tea tree essential oil on your skin: Cleanse. Before applying tea tree oil, wash your face with a gentle cleanser. Pat dry with a soft cloth and allow it to air dry if your skin is still damp. Dilute. Combine 1-2 drops...
I will talk about why we need coated glass slides; the different adhesives used in slide coating; some basic chemistry processes of slide coating that you can explain to your customers; and hydrophobicity, hydrophilicity, wettability and contact angle. ...
What Is Buffer Capacity and What Does It Mean? The amount of acid that buffers can absorb before breaking the capacity for adding strong acid is referred to as buffer capacity. When adding a strong acid, solutions with a weaker base have more buffer capacity. When a strong base is added ...
Any substance which releases hydrogen ion or a proton when dissolved in water is called acids. The acids taste sour. It can change the color of the litmus paper. The acids have a pH value of less than 7. The example of acids are hydrochloric acids (HCl), sulfuric acid ({eq}H_2S...