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Ever wondered how your smartphone works? Take a journey down to the atomic level with scientist Cathy Mulzer, who reveals how almost every component of our high-powered devices exists thanks to chemists -- and not the Silicon Valley entrepreneurs that come to most people's minds. As she puts it: "Chemistry is the hero of electronic communications."
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- Chemistry
- Keywords:
- Photolithography Chemistry Smartphones Telecommunication
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- Video
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Video
This channel contains a complete list of physics videos, as well as hundreds of chemistry, astronomy, math, and mechanical engineering videos. The physics videos explain the fundamental concepts of physics with some easy to follow examples on how to solve physics problems. The chemistry videos cover all the basic topics of chemistry, the astronomy videos explain the wonders of Earth and our Universe, and the math videos cover many topics in algebra, trigonometry, pre-calculus, calculus and differential equations.
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- Chemistry, Mathematics and Statistics, Cosmology and Astronomy, Physics, Mechanical Engineering, and Electrical Engineering
- Keywords:
- Chemistry Astronomy Electrical engineering Physics Mathematics Mechanical engineering Kalman filtering
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- Video
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Video
Comparing initial rates to determine the order of reaction is a very common question in Kinetics.
Let's take a look at an example:
The objective is to choose a pair of experiments for comparison where the concentration of a reactant changes and ideally the concentration of other reactants remain constant. This means that any change in the initial rates of the experiments must be due to the change in the concentration of that reactant, and we can figure out the order from there.
1. Order of Reaction with respect to HCl
Comparing experiments 1 and 3, concentration of HCl doubles and there is no change in concentration of sucrose. So the change in initial rates must be due to HCl only. We can work out the change in initial rates to be 2 times. This means when concentration of HCl doubles, initial rate doubles. Therefore order of the reaction with respect to HCl will be order 1. For comparison, if order of reaction is zero, initial rate will remain unchanged when concentration of HCl doubles. If order of reaction is 2, initial rate will increase by 4 times (2^2 times) when concentration of HCl doubles. Since we only have 3 possible orders to consider, figuring out the order of reaction is quite straightforward.
2. Order of Reaction with respect to sucrose
Comparing experiments 1 and 2, concentration of sucrose increase by 1.5 times and there is no change in concentration of HCl. So the increase in initial rates by 1.5 times must be due to sucrose only. Since this is a proportionate increase, order of reaction with respect to sucrose is also order 1. Finally we can write out the rate equation for this reaction to be: rate = k [HCl][sucrose]
- Course related:
- ABCT 2701 Analytical Chemistry
- Subjects:
- Chemistry
- Keywords:
- Chemistry Physical theoretical
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- Video
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In this journal platform, you can find the articles which published under the Creative Commons Attribution-NonCommercial 4.0 International License. The journal covers a various disciplines, including:
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"SciDoc Publishers" is an Open Access publisher established with a sole motive to disseminate knowledge among the scientific community. The journal including the disciplines:
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- Health Sciences, Environmental Sciences, Medicine, Chemistry, Food Science, Biology, Physics, and Aeronautical and Aviation Engineering
- Keywords:
- Science Periodicals Medicine Technology
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Maxwell Scientific Publication Corp. operates as an independent science and technology publisher with a global reputation for quality products and services to contribute to the advancement of research knowledge. In this journal platform, you can find the articles which published under the open license. The journal including the disciplines:
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In this journal platform, you can find the articles which published under the open license. The journal including the disciplines:
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Estonian Academy Publishers issues seven open access scientific journals, peer-reviewed, indexed and abstracted in international review publications and databases. All journals have an international Editorial board. Publications of the Estonian Academy Publishers cover almost all important areas of contemporary science. Our journals are peer reviewed and recognized by the Estonian Research Council and the Estonian Committee of Science Compentence as journals meeting international scientific standards.
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- Environmental Sciences, Physics, Chemistry, Archeology, Mathematics and Statistics, Biology, and Foreign Language Learning
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- Science Periodicals Uralic languages Ecology Mathematics Archaeology Technology Chemistry Social sciences Europe -- Baltic Sea Region Engineering Humanities Geology History Physics
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Edorium journals is one of the leading academic publishers of open access journals. It publishes peer reviewed journals and international journals in fields including basic sciences, medical specialties and surgical specialties. You can refer the open access journals list on Edorium Journals to know the sub-specialties under which scholarly articles can be published here. It covers a variety of disciplines including medicine, science, humanities, technology, chemistry, arts, biology, engineering, management, physics, cancer research, neuroscience, genetics, immunology and infection, environment, developmental biology, bioengineering, clinical skills, biochemistry, behavior, psychology, and many more.
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