In chemistry, a mole is a quantity used relate reactants to products in stoichiometric equations. A mole of any substance is equal to 6.02 x 10^23 particles — usually atoms or molecules — of that substance. Fo
Only one rule to know here:Like polaritydissolveslike polarity. 1 concept Understanding “like dissolves like”. Video duration: 1m 2 concept Introducing common solvents and other molecules in organic chemistry. Video duration: 2m Ask a question ...
How do intermolecular forces and kinetic energy interact to determine at what point a liquid will boil?Intermolecular Forces:Intermolecular forces are attractions between neighboring molecules that help determine the melting and boiling points of substances. The three...
How do impurities affect the boiling point of a liquid? What is the effect of impurities on boiling point? What does the melting point tell you about the purity of a substance? Explain how you could use the melting point to determine the purity of a solid sample. ...
Although not as versatile as carbon, silicon can also form up to four bonds with other atoms and has been proposed as a basis for molecules of alien life (silicon-carbon hybrid molecules have also been proposed). It is likely that alien life forms would have some type of complex molecule ...
Deposits of bauxite occur as flat layers lying near the Earth's surface and may cover many miles. Geologists locate these deposits byprospecting-- taking core samples or drilling in soils suspected of containing the ore. By analyzing the cores, scientists are able to determine the quantity and ...
types of Van der Waals forces, strongest to weakest, are dipole-dipole forces, dipole-induced dipole forces and the London dispersion forces. The hydrogen bond is based on a type of dipole-dipole force that is especially powerful. These forces help determine the physical characteristics of ...
In order to choose the appropriate experimental conditions, it is necessary to know the main factors that determine the gelation mechanism. Download: Download high-res image (281KB) Download: Download full-size image Fig. 11. (a) Photograph of a wet, volume-filling titania nanoparticle gel and...
Allergists use a variety of diagnostic techniques to determine if a person is allergic. Unfortunately, the safest and often the most effective tests are not completely reliable by themselves in identifying if a substance is the cause of a patient's symptoms. The most common test, the scratch te...
How to perform an experiment to determine the effect that sodium chloride on the boiling point of water? Why does NH_3 have a lower boiling point than H_2O? Briefly explain why you should not add boiling chips to a boiling liquid. Why does the vapor pressure of water decrease when NaCl...