And expansion results in a pressure increase. For instance, water’s molecular weight is 18. The volume of eighteen grams of water is very slight. Convert it to vapor however, and it occupies 22.4 liters—the better part of a cubic foot. Intensifying Factor 2 An even stronger explosion res...
Because AP Chemistry is such a challenging class, it's likely that many students will be interested in extra help outside of the designated class period. Although students should be encouraged to take the initiative in asking for help, I think it's also a good idea to set up a designated...
Computational Chemistry Molecular Modelling Statistical Mechanics 1Introduction The general framework to describe and predict the behavior of macroscopic matter, statistical mechanics, was laid down in the 19th century by Boltzmann and Gibbs. The first ingredient of this theoretical framework is the atomisti...
What is the relationship between the intermolecular forces in a liquid and its vapor pressure? Explain how to distinguish which intermolecular force a molecule has. What holds the O atoms together in a molecule of oxygen gas? (a) ionic bond (b) polar...
Using chemistry concepts and terms, define a reactant. What special precautions should be taken when generating hydrogen gas? Is the vapor pressure of water and acetone different? Explain. What is analytical chemistry in simple terms? Briefly explain the similarities and differences b...
(brown curves) including only water within cell walls. The maximum cell wall moisture contentucw, max(see “Partitioning of water in the saturated moisture state”), is marked in both Fig.5a, b for reference. Total sorption isotherms are commonly determined using the pressure plate technique (...
Why does the vapor pressure of water decrease when NaCl is added to it? What happens when water is softened? What happens to the boiling point when sugar is added to water? Explain. How would you prepare 1.00 L of a 0.5 M solution of NiCl2 from the salt NiCl2 6H2O?
high pressure, and complete darkness. As such, scientists have been surprised to find other life forms at the depts of the Mariana Trench. Many of these are bioluminescent, which is a necessity for these animals to be able to communicate with one another. Among some of these creatures that ...
Simple distillation may be used when the boiling points of two liquids are significantly different from each other or to separate liquids from solids or nonvolatile components. In simple distillation, a mixture is heated to change the most volatile component from a liquid into vapor. The vapor ri...
Magmain the Earth's mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The heat comes from the intense pressure on the rock, combined with the energy released from the naturalradioactive decayof elements. The...